• Historic Batter for America with Kelsey Grammer - Fox Nation, Expert, Four Episodes
• The Smithsonian Institution
• National Portrait Gallery 
• New-York Historical Society
• Recipient of the 2017 Daughters of the American Revolution National Excellence in American History Book Award—speaker at DAR National Convention, June 2017
• USMC School of the Infantry, via LTG James Mattis
• Captain’s Course, Fort Benning, via LTG H.R. McMaster
• The Society of The Cincinnati—Anderson House  
• President Ronald Reagan's Ranch, Rancho del Cielo 
• The Heritage Foundation 
• Mount Vernon—Ford Motor Company Evening Lecture Series 
• Keynote speaker for the Grand Opening of the Museum of the American Revolution at Yorktown 
• Office of Director of National Intelligence (ODNI)
• Captain’s Course, USMC, Quantico 
• Provided guided tours of Normandy, France (D-Day invasion beaches and drop zones) for USMC Fifth Marines, USMC Wounded Warrior Regiment
• U.S. Army Special Forces Command Leadership Conference
• DARPA Senior Leadership Conference 
• NPR, Fox News, CNN, C-SPAN (BookTV), MSNBC (appeared on each program multiple times); subject of reviews and feature stories by hundreds of newspapers and radio programs

 

National Tour for Washington’s Immortals

• CPAC Chairman Dinner Keynote speaker kicked off the entire conference.
• Green-Wood Cemetery, Brooklyn, NY, on the site of the Battle of Brooklyn (sold-out/standing-room only); Fox News and Global Catholic Television Network covered the event
• John Batchelor (ABC Radio) hosted two, one-hour segments based on Washington’s Immortals.
• Washington’s Immortals was a key element of the Civil War Trust’s Campaign 1776.
• National Park Service’s 235th Anniversary of the Battle of Guilford Courthouse, Greensboro, NC—keynote speaker (sold-out, standing-room only event)
• Princeton Battlefield Society, Civil War Trust, Princeton, NJ—keynote speaker (sold-out event, standing-room only event)
• David Library of the American Revolution, Washington Crossing, PA (sold-out, standing-room only event)
• Politics & Prose, Washington, DC—keynote speaker 
• Civil War Trust Fund Dinner, Baltimore, MD—keynote speaker to senior donors
• Rowfant Club, Cleveland, OH—keynote speaker
• NYC Revolutionary War Roundtable, New York City, NY—keynote speaker (sold-out)
• Legendary historian Thomas Fleming presented O’Donnell a Certificate of Recognition for “his superb book” Washington’s Immortals.
• Revolutionary War Roundtable, Mount Vernon, VA—keynote speaker; sponsored by Center for Military History historian Glenn Williams
• World War II Round Table, Minneapolis, MN (fifth time presenting)
• Pritzker Library and Museum, Chicago IL (seventh time presenting)
• The Society of The Cincinnati, Anderson House, Washington, DC—keynote speaker (sold-out, standing-room only event)
• Co-host, SiriusXM Radio: D-Day, June 6
• Co-host, SiriusXM Radio: American Revolution—Eight Hours of the American Revolution, July 4
• National Public Radio (NPR – Here & Now)
• President Ronald Reagan’s Ranch, Santa Barbara, California—keynote speaker (standing-room only event)
• Mount Vernon—Ford Distinguished Speakers Series in conjunction with the Fred W. Smith National Library for the Study of George Washington—keynote speaker (sold-out, standing-room only event)
• The Institute of World Politics, Washington, DC—keynote speaker (sold-out event)
• Maryland Statehouse, Annapolis, MD keynote speaker (standing-room only event)
• Hosted by Governor of Maryland Larry Hogan and the City of Annapolis to honor Washington’s Immortals
• Introduced by the President of the Maryland Senate, Thomas V. “Mike” Miller
• A portion of the event was held in the same chamber where General Washington resigned his commission to Congress.
• Maryland History Roundtable, Maryland National Guard Armory, Baltimore, MD—keynote speaker; presentation to the leadership of the Maryland National Guard (sold-out, standing-room only event)
• The 29th Division and 175th Infantry Regiment draw their lineage from Major Mordecai Gist and the Baltimore Independent Cadets, “Washington’s Immortals.”
• Officially designated as an Honorary Member of the Regiment by the Secretary of the United States Army
• Fraunces Tavern, New York City, NY—site of Washington’s farewell address to his officers (sold-out, standing-room only event) 
• St. Edward High School, Lakewood, OH—addressed entire school of 1,000 students
• O’Donnell’s alma mater selected four of his books as mandatory summer reading for each grade level.
• Princeton Battlefield—Civil War Trust and Princeton Battlefield Society keynote speaker, tied to commemoration and reenactment of the battle
• New-York Historical Society, New York City, NY (sold-out, standing-room only event)
• Maryland National Guard “Pass and Review” of the entire 175th Infantry Regiment (29th Division), Maryland National Guard Armory, Baltimore, MD—honored guest and keynote speaker
• Grand opening American Revolution Museum at Yorktown—3/29/2017
• Maryland Historical Society May 2017 
• Sons of the American Revolution National Convention 2018