Hosts, Presenters & Historians Biographies

The 2025 Virtual Teacher Institute

Speaker lineup and schedule are subject to change.
American Battlefield Trust Event
July 21 - 23, 2025 @ 10:30 AM - 4:00 PM EDT

Keynote Speakers

Patrick K. O'Donnell (Monday Keynote Speaker)

Combat historian, bestselling author, and public speaker Patrick K. O'Donnell has written 13 critically acclaimed books that recount the epic stories of America's wars from the Revolution to Iraq. A Fellow at Mount Vernon, he is the recipient of numerous national book awards. O’Donnell is a premier expert on elite and special operations units and irregular warfare. 

O’Donnell is the leading expert on the Office of Strategic Services (OSS), forerunner of the Central Intelligence Agency and America’s special operations forces in WWII and has written four award-winning books on the subject. His books are described as “nonfiction that reads like fiction.” O’Donnell’s bestselling and most recent book is THE UNVANQUISHED: The Untold Story of Lincoln’s Special Forces, the Manhunt for Mosby’s Rangers, and the Shadow War That Forged America’s Special Operations.  He has appeared as a guest on countless television and radio shows on NPR, CNN, FOX, Discovery, and other networks. All of his books are also available as audiobooks on Audible.com. 

To be Announced - (Tuesday Keynote Speaker)

Jeff Shaara (Wednesday Keynote Speaker)

Jeff Shaara, a descendant of Italian immigrants, was born in New Brunswick, New Jersey. He grew up in Tallahassee, Florida, and graduated from Florida State University with a degree in criminology. From age 16, Jeff operated a rare coin business and became one of the most widely known coin and precious metals dealers in Florida. In 1988, Jeff's father, Michael Shaara, died, and Jeff made the decision to sell his business and take over the management of his father's estate. In 1993, the motion picture “Gettysburg” was released, based on his father's classic novel, The Killer Angels. After the critical and commercial success of the film, Jeff was approached about continuing the story and finding someone to write a prequel and sequel to The Killer Angels. After some considerable soul-searching, Jeff decided to try to tackle the project himself. In 1996, Ballantine Books published Jeff's first novel, Gods and Generals, the prequel to his father's great work. Gods and Generals leaped onto the New York Times Bestseller List and remained there for fifteen weeks. Critics nationwide praised the book and Jeff's writing ability, and the book was awarded the American Library Association's prestigious "Boyd Award." No one was more surprised than Jeff himself. In 1998, the sequel, The Last Full Measure, was published, with the same result: thirteen weeks on the New York Times Bestseller List and universal praise from critics and fans nationwide. 

In May 2024, St. Martin's Press released Jeff's 20th book, The Shadow of War, a novel dealing with the Cuban Missile Crisis. Jeff is now a four-time recipient of the American Library Association's "William Young Boyd Award" for Excellence in Military Fiction (for Gods and Generals, To The Last Man, The Frozen Hours, and most recently, The Eagle's Claw). Jeff has been recognized three separate times by his alma mater, Florida State University. He has received numerous awards, including  the Congressional Medal of Honor Society’s prestigious "Bob Hope Award for Excellence in Entertainment,” becoming the second author to receive the award.  

 

Breakout Sessions & Power Sessions Presenters

Justin Bates

Justin Bates is the Manager of Special Programs at Thomas Jefferson's Monticello. Justin started his career at Monticello in 2013 and gained experience in historic interpretation. In his current role, he trains guides and manages many of Monticello's daily interpretive programs which explore Jefferson's contributions to the founding of the United States and Monticello's role as 5,000-acre plantation where hundreds of enslaved people lived and labored. Justin is passionate about bringing history forward to Monticello's many visitors by making the past relevant through the site's powerful stories

Sarah Kay Bierle

Sarah Kay Bierle graduated from Thomas Edison State University with a BA in History, works in the Education Department at American Battlefield Trust, and occasionally writes for Emerging Civil War. She has spent years exploring ways to share quality historical research in ways that will inform and inspire modern audiences, including school presentations, writing, and speaking engagements. Sarah has published three historical fiction books and her first nonfiction book, Call Out The Cadets: The Battle of New Market, is part of the Emerging Civil War Series.

Dr. Daryl Black

Dr. Daryl Black has spent his life thinking and writing about the Civil War era. He earned his Ph.D. from the University of California, Irvine and since has worked in academic and public history. His published work addresses religion and memory; souvenirs and meaning making at Chickamauga, and the 1863 campaigns in Tennessee. He is currently working on a book length study of religion in Robert E. Lee's Army of Northern Virginia.    

Matt Callery

Matt Callery is the host of the Addressing Gettysburg podcast. Since 2018, Addressing Gettysburg has explored the Battle of Gettysburg, the Civil War and the culture around Gettysburg through the ages. "Ask A Gettysburg Guide" continues to be Addressing Gettysburg's most popular show as it connects the audience to Gettysburg's Licensed Battlefield Guides who join Matt on deep dives of the various actions of the battle, units, personalities and more. Through their Patreon content, Addressing Gettysburg uses the Battle of Gettysburg as a springboard to explore the military, cultural, political, economic and societal aspects of mid-Nineteenth Century America. Most importantly, Matt uses a fun, laid-back approach to exploring these topics that makes the subject feel accessible to his audience. 

Melissa DeVelvis

Melissa DeVelvis is a scholar of the Civil War era and Assistant Professor of History at Augusta University in Augusta, Georgia. Her book, Gendering Secession: White Women and Politics in South Carolina, 1859-1861, was published by Cambridge University Press this year. Her work can also be found in The Washington Post, the Journal of American Studies, the Organization of American Historians' magazine The American Historian, and soon in an edited volume on the memory of George Washington. Her current public history project, Recovering Reconstruction, hopes to spread the story of Reconstruction in Augusta (which includes the First South Carolina Volunteers!) to the public and public landscape. She has worked alongside the University of South Carolina in Columbia and Beaufort and the Reconstruction Era National Historical Park to gather primary sources relating to the 1st SCV and helped put together public symposiums centered around the regiment. 

Michael C. Harris

Michael C. Harris is a graduate of the University of Mary Washington and the American Military University. He has worked for the National Park Service in Fredericksburg, Virginia, Fort Mott State Park in New Jersey, and the Pennsylvania Historical and Museum Commission at Brandywine Battlefield. He has conducted tours and staff rides of many east coast battlefields. Michael is certified in secondary education and currently teaches in the Philadelphia region. He lives in Pennsylvania with his wife, Michelle and son, Nathanael. 

Emily Holmes

Emily Holmes began her museum career simultaneously as a part time Museum Interpreter at the Paul Revere House and Education Department intern at the Scottish Rite Museum & Library in the summer of 2000 while majoring in History at Smith College. Between college and pursuing a graduate degree in Museum Studies she expanded her experience at the Revere House to include teaching school programs, a background that led her to choose a concentration in Education during her graduate work. After finishing her Masters in History Museum Studies at the Cooperstown Graduate Program in 2007, Emily returned to the Paul Revere House to become the Program Assistant. In 2008 she took on her current role of Education Director, managing the Education Department’s functions as well as the museum’s Special Events and Social Media. 

Jared Ludlow Jr.

Jared Ludlow Jr. is the education manager at the Battleship Missouri Memorial at Pearl Harbor. His background is in the Ancient Near East, with an MA from the Hebrew University of Jerusalem. However, he has worked in various education positions while pursuing studies. Jared has been an art museum educator, a K-12 substitute teacher, and taught university language courses. Although his professional historical background is in the Middle East, while working at Pearl Harbor he has studied and learned about related topics, in particular naval warfare and the Second World War. 

Dr. Chris Mackowski

Chris Mackowski, Ph.D., is the editor-in-chief and co-founder of Emerging Civil War. He is the series editor of the award-winning Emerging Civil War Series, published by Savas Beatie, and the “Engaging the Civil War” Series, published in partnership with Southern Illinois University Press. Chris is a professor of journalism and mass communication at St. Bonaventure University in Allegany, NY, and historian-in-residence at Stevenson Ridge, a historic property on the Spotsylvania battlefield in central Virginia. He has also worked as a historian for the National Park Service at Fredericksburg & Spotsylvania National Military Park, where he gives tours at four major Civil War battlefields (Fredericksburg, Chancellorsville, Wilderness, and Spotsylvania), as well as at the building where Stonewall Jackson died. Chris has authored or co-authored a dozen books on the Civil War, and his articles have appeared in all the major Civil War magazines. 

Mark Maloy

Mark Maloy has been working in the history field for more than 15 years. He received his Bachelor’s Degree in History at the College of William & Mary and received his Master’s Degree in Public History from George Mason University. He has authored two books on the Revolutionary War: Victory or Death: The Battles of Trenton and Princeton and To the Last Extremity: The Battles for Charleston. 

Nathan Schultz

Nathan Schultz is a public historian who serves as the site manager at Alamance Battleground, a North Carolina state Historic site. He holds a degree in History from the University of Mary Washington. His work is focused on Early American History and has worked extensively in Living History Interpretation with a specialty in preserving intangible cultural heritage. 

Timothy H. Smith

Timothy H. Smith has been a Licensed Battlefield Guide at Gettysburg National Military Park for over 25 years and is currently the Director of Education at the Adams County Historical Society (ACHS). He was also named County Historian in 2023. Tim has been involved with ACHS since the late 1980s when he began volunteering as a research assistant. He is the author of ten books and numerous articles about the Civil War, the Gettysburg Campaign, and a host of other local history topics. Tim is also a historical consultant for the American Battlefield Trust and a frequent lecturer at Civil War Round Tables and Seminars and appears regularly on the Pennsylvania Cable Network’s Battle Walks Series. Tim is recognized as one of the leading experts on the Battle of Gettysburg and all aspects of Adams County history. 

Teri A. Surber

Teri A. Surber is a Park Guide at Andersonville National Historic Site in Georgia. She shares a variety of interpretive programs and outreach to encourage the development of a deeper understanding of American history.  

Madeleine Thompson

Madeleine Thompson is the Site Administrator for the Clara Barton Missing Soldiers Office Museum, part of the National Museum of Civil War Medicine, where she regularly provides guided tours focused on the life of Clara Barton and the history of the Missing Soldiers Office. Prior to joining the Missing Soldiers Office Museum, she received her Master of Arts in Sexual Dissidence from the University of Sussex where she completed her dissertation on medieval women’s bedrooms. Madeleine received a Bachelor of Arts in Political Science from West Virginia University with minors in History and Women’s and Gender Studies. She has prior experience in talent acquisition and is a founding member of DC Women in Public History. 

Emily Voss

Emily Voss is a highly experienced professional specializing in event management, professional learning, and civic education. As the Senior Manager of National Programs and Professional Learning at the Center for Civic Education, she oversees the organization of national competitions for the Center’s flagship programs, We the People: The Citizen and the Constitution and Project Citizen. In addition to her work on national events, she coordinates virtual professional learning initiatives, including the We the People boot camp and 60-Minute Civics webinars. A significant part of Emily’s role involves supporting the Center’s state coordinators, where she leads monthly planning meetings and assists them with grant-related requirements to ensure the successful implementation of the Center’s programs at the state level. Before joining the Center for Civic Education, Emily held leadership roles at several prominent museums. As Director of Education at the Robert H. Smith Center for the Constitution at James Madison’s Montpelier, she spent nearly a decade developing professional development programs for teachers, focusing on contemporary constitutional issues. Earlier in her career, she served as the School Programs Manager at the National Baseball Hall of Fame and Museum. In 2018, Emily co-founded Virginia Civics Education, Inc., a 501(c)(3) nonprofit organization, and continues to coordinate the acclaimed We the People: The Citizen and the Constitution civic education program for students in Virginia. Emily holds a BA in History from Gettysburg College and an MA in Museum Studies from the Cooperstown Graduate Program (SUNY). 

Adrienne G. Whaley

Adrienne G. Whaley is an educator and history-lover who currently serves as Director of Education and Community Engagement at the Museum of the American Revolution.  Adrienne earned her Bachelor's degree in African American Studies from Harvard University and her Master's in Education from the University of Pennsylvania. She has worked in both art and history museums, including the Museum of Modern Art (New York), the African American Museum in Philadelphia, and the Smithsonian's Anacostia Community Museum. Adrienne loves the potential for objects, artifacts, and primary source documents to enrich student learning experiences. She carries her love of history and for uncovering the stories of common people into her spare time as an avid genealogist researching her own family history, and as former Programming Chair and President of Philadelphia's African American Genealogy Group. As both a museum educator and as a genealogist, she has presented on television and in workshops and conferences both locally and nationally. 

Melissa Winn

Melissa Winn is the Director of Marketing and Communications for the National Museum of Civil War Medicine. Previously, she was the Marketing Manager for the American Battlefield Trust, and Director of Photography for HistoryNet, publisher of nine history-related magazines, including America’s Civil War, American History, and Civil War Times, for which she served as the primary photo researcher, photographer, and a regular writer. She’s a Senior Editor for Military Images magazine, with a regular column focused on women and the Civil War; is a member of the Board of Directors of the Civil War Roundtable Congress; and President of the Bull Run Civil War Round Table. Winn received a BA in English from the University of Wisconsin. She’s a member of the Professional Photographers Association, Authors Guild, Women's Relief Corps, and the Center for Civil War Photography. 

Hannah Zimmerman

Hannah Zimmerman is Monticello’s Coordinator of Teacher Learning. She previously served as the Digital Programs Coordinator. Prior to coming to Monticello, she taught sixth grade social studies for two years in Central Virginia. Before moving to Virginia, she was the Marketing and Communications Director at Historic Locust Grove in her hometown of Louisville, KY. Hannah has a Bachelor of Arts degree in History from Spring Hill College and a Master of Arts degree in Early American History with a concentration in Public History from Marquette University. 
 

Moderators

Sarah Kay Bierle

Sarah Kay Bierle graduated from Thomas Edison State University with a BA in History, works in the Education Department at American Battlefield Trust, and occasionally writes for Emerging Civil War. She has spent years exploring ways to share quality historical research in ways that will inform and inspire modern audiences, including school presentations, writing, and speaking engagements. Bierle has published three historical fiction books and her first nonfiction book, Call Out The Cadets: The Battle of New Market, is part of the Emerging Civil War Series.

Dr. Chris Mackowski

Chris Mackowski, Ph.D., is the editor-in-chief and co-founder of Emerging Civil War. He is the series editor of the award-winning Emerging Civil War Series, published by Savas Beatie, and the “Engaging the Civil War” Series, published in partnership with Southern Illinois University Press. Chris is a professor of journalism and mass communication at St. Bonaventure University in Allegany, NY, and historian-in-residence at Stevenson Ridge, a historic property on the Spotsylvania battlefield in central Virginia. He has also worked as a historian for the National Park Service at Fredericksburg & Spotsylvania National Military Park, where he gives tours at four major Civil War battlefields (Fredericksburg, Chancellorsville, Wilderness, and Spotsylvania), as well as at the building where Stonewall Jackson died. Chris has authored or co-authored a dozen books on the Civil War, and his articles have appeared in all the major Civil War magazines. 

Kris White

Kris is the director of education & events at the American Battlefield Trust. White is a graduate of Norwich University with an M.A. in Military History and California University of Pennsylvania with a B.A. in History. He served as a ranger-historian at Fredericksburg and Spotsylvania National Military Park. He has also served the Penn-Trafford Recreation Board as a historian, and as a continuing education instructor for the Community College of Allegheny County. White is the co-founder and chief historian emeritus of Emerging Civil War and co-creator of the Emerging Civil War Series. An award-winning speaker and editor, White has authored, co-authored, or edited some two dozen books, including four covering the Battle of Gettysburg. Kris frequently leads tours and staff rides in the United States and Europe.