Jeff Guinn is an award-winning former investigative journalist and the bestselling author of numerous books, including Go Down Together: The True Untold Story of Bonnie and Clyde; The Last Gunfight: The Real Story of the Shootout at the O.K. Corral—And How It Changed the West; Manson: The Life and Times of Charles Manson; and The Road to Jonestown: Jim Jones and Peoples Temple.

Blaine Harden is the author of three books about North Korea and was a longtime foreign correspondent for The Washington Post.

John Harris is McDonald-Boswell Chair in History at Erskine College and the author of The Last Slave Ships: New York and the End of the Middle Passage. Follow him on Twitter: @drjohnaeharris.

Patrick Heery started his sports writing career in 2016 for The Has Been Blog, and, in 2018, began writing for Yardbarker, a sports and entertainment site. A history major in college, he practices real estate law in Ohio.

Adam Higginbotham writes for The New Yorker, The New York Times Magazine, Wired, GQ and Smithsonian. He is the author of the book Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster.

Abigail Higgins is a journalist and writer in Washington D.C. focusing on health, gender, and international affairs.

L. Stuart Hirai, an independent historian of the 100th/442nd Regimental Combat Team, serves on the board of governors of the Go For Broke National Education Center.

Sophia Hollander is an award-winning journalist and editor whose work has appeared in The New Yorker, The New York Times and The Wall Street Journal. She recently co-edited the book, The Urbanist: Dan Doctoroff and the Rise of New York, a collection of more than 50 essays from historians, journalists and City Hall insiders charting New York's recovery from 9/11.

James Horn, historian and president of the Jamestown Rediscovery Foundation, is the author of A Brave and Cunning Prince: The Great Chief Opechancanough and the War for America, among other books.