Recheck the date quoted for FM Hill's death:
"Moberly Weekly Monitor (Missouri) – February 5, 1920
QUANTRELL SURVIVOR DEAD
McKinney, TX; Feb 4 – Capt. F. M. Hill, one of the last survivors of the Quantrell band which operated in the Southwest during the civil war died here TODAY. He was born in Missouri."
This tells me he was not one of a list who lived past 1924.
Fran Bolton