I found more possibilities for an index of who is buried in Glens Ferry. If you offer a donation, a member might be willing to go to the Cemetery and take a picture.
Elmore County HIstorical Museum, 1380 South 3 East, Mountain Home, ID 83647, 208-587-6847.
Glenns Ferry Historical Museum, 211 West Cleveland, Glenns Ferry, 83623, 208-366-2760.
Idaho Genealogical Society, Inc, 4620 Overland Rd, Room 204, Boise, ID 83705-2867, 208-384-0542. Successful Searching!