From BR Bullpen
These folk were Military Veterans, as identified by the Baseball and the Armed Forces Committee of the Society for American Baseball Research (SABR).
This information has been dug out of numerous sources including newspaper obituaries (OB), VA Hospital Records (VA), Miltary Cemetery websites (CM), Soldier & Sailors System (CW), Sporting Life (SL), The Sporting News (TSN), Stars&Stripes (S&S), the SABR BIOProject (BP), The Sports Encyclopedia:Baseball 2006 by David Neft & Richard Cohen (N&C), old Who's Who in Baseballs (WW), old Baseball Registers (BR), Commissioners Lists (CL), The Baseball Necrology (BN), Baseball in World War II Europe by Gary Bedingfield (GB), independent research by Walter Kephart and Frank Russo and others.
They are people who are military veterans and who were connected with baseball (players, managers, coaches, umpires, executives et al.) in the Major Leagues, minor Leagues, Negro Leagues, Japanese Leagues, AAGPBL, Hispanic and Amateur Leagues (prior to 1871), identified by the Baseball and the Armed Forces Committee of the Society of American Baseball Research (SABR).
 A note about who is included in each war
Title 38 of the US Code as it applies to the Department of Veterans Affairs (formerly the VA or Veterans Administration) defines the dates of the various wars and that is what is used here
The dates they use for the US wars:
- Spanish American War 4/21/1898 to 7/4/02
- WW1 4/6/17 to 11/11/18
- WW2 12/7/41 to 12/31/46
- Korean Conflict 6/27/50 to 1/31/55
- Viet Nam Era 8/5/64 to 5/7/75 except that anyone who served in the
- Republic of Viet Nam from 2/28/61 to 8/5/64 is also included.
Accordingly we have made corresponding assumptions about the Mexican War, Civil War, Indian Wars, Boxer Rebellion, Mexican Border War and the conflicts of the last decade and a half.
Service during wartime does not imply combat experience or even service in a combat area. To be eligible as a war veteran the individual only has to have been in the armed service during those dates.
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This category has the following 20 subcategories, out of 20 total.