I am still unsure which State or Regiment he served. Yes Sam lived in Mason, Yell County. born 1832 in Tenn.

This is confusing, Regiment: Yell, State Served From: Missouri.

Name: Samuel T. Frost
Spouse Name: M. A. Frost (Margaret A.)
Residence Location: Yell, Arkansas
State Served From: Missouri
Division: Cavalry
Regiment: Yell
Death Date: 20 Nov 1923
Comments: widow applied 1924

Thanks for any help.