Waldo E. Koop (1920–1990) was a writer on the history of the American West, a researcher, and author of publications about Billy the Kid and "Rowdy Joe" Lowe.
Family
Waldo E. Koop was the son of John K. Koop and Katie Schmidt of Harvey County, Kansas. His father was a store keeper for a railroad, and his mother operated a laundry at home. He married Bette J. Young.
Career
As a career, Waldo E. Koop was an engineer for Boeing. He was called one of the nation's finest researchers by local and state historians, and was credited in the series of Time Life books on the Old West for his research on gunfighters. Koop discovered that Henry McCarty, later known as Billy the Kid, spent time in Wichita, Kansas, where he saw his first gunfight. He published his findings in 1965 in the book, Billy the Kid: the Trail of a Kansas Legend.The Wichita Eagle, (Kansas), Saturday, April 28, 1990, "Waldo Koop Tracked History of Wild West"
Publications
Billy the Kid, The Trail of a Kansas Legend (Trail Guide), by Waldo E. Koop, 1965 Rowdy Joe Lowe: Gambler With a Gun, by Joseph G. Rosa and Waldo E. Koop, Oct. 1989 Book Review: ENCYCLOPEDIA OF WESTERN GUNFIGHTERS, The Journal of Arizona History, Vol. 20, No. 4, by Waldo E. Koop, 1979 Waldo Koop Research Collection, by Waldo E. Koop, 1965-1990
References
External links Worldcat Overview & works, Waldo E. Koop Waldo Koop Research Collection at the Kansas Historical Society, Topeka, Kansas Waldo Emerson Koop at Ancestry.com