I can try and help you with your Martin family.I live across the street from the library.
Checking the one cemetery book, I found: Hamilton C. Martin grave 1 lot 19 block H no birth or death dates Sgt. Co. 1 2nd Colo Cav.
Hannah E. Martin grave 2 lot 19 block H birth 1855 death 1903
Dale Saron Martin grave 3 lot 19 block H no birth or death dates
other Martin surnames are Bennie C., Carrie E., Cassie I., Chester Rankin, Christina, C.A., Earl G., Eva Pearl, George Oliver, Henry Leslie, H.F., John Henry, Leona, Maude Irene, Robert B., Ruby P., R.S., Sina McFadden, Swea, and Thesie Maud.
I assume Dale is their son because he is buried next to them, but none of the other names caught my attention by being close.
There is another cemetery across the street, but I didn’t check that book for Martin.
I can talk to the cemetery folks and get a death date from their records and then check for an obit and maybe sift out some names, maybe the county directories,etc.