The "friends and relations" verse may have been borrowed from a song of that name, "My Friends and Relations."
See Dana Coolidge, "Texas Cowboys," (Dutton, 1937), a book about the period before WW1. He says he collected it from a cowboy known as Outlaw Tom. The tune generally used is "My Home in Montana," but that was applied to it by later singers. The first verse;

My friends and relations, they live in the Nations,
They know not where their cowboy has gone.
Besides their vexation and great trouble-ation
Someday they'll be sorry for what they have done.

The book was about Texans working for the Chiricahua Cattle Co. in Arizona ("the Cherrycows").
Powder River Jack Lee sang the song in the 1940s.

See Glenn Ohrlin, 1973, "The Hell-Bound Train, A Cowboy Songbook, pp. 6-7, Univ. Illinois Press.