FOR EXAMPLE
I was just looking at the Mauser thread so I used the MF index and entered the name...
https://www.maryferrell.org/search.html?q=mauser&types=M4 hits in Mary Ferrell Databases
1. VOGEL, JAMES
Found in: Mary Ferrell's Database
Owner of 2 rifles: one a Swiss Mauser with a scope. Ernest C. Butler (Vogel's landlord), reported the Mauser might be the rifle which killed President
2. BUTLER, ERNEST CLIFFORD
Found in: Mary Ferrell's Database
Plumbing Co., 7552 So. Central, Dallas, (214) 374-0845. Said Vogel had 2 Mauser rifles. Suspected Vogel might be involved in assassination.
3. POWER, HARRY L.
Found in: Mary Ferrell's Database
7th and Wabash Ave., Terre Haute, Indiana (hotel), leaving 7.65 German Mauser behind. (Serial No. U 8686) Room 705 was on the Wabash Avenue side of
4. CASTER, WARREN D.
Found in: Mary Ferrell's Database
Carolina. Survived by widow: Ruthann. SS# 525-14-7945. Brought a .30-06 Mauser and a Remington .22 single shot rifle into TSBD on 11/20/63. Was eating
"Was eating" what?... we don't know.