I found a short obituary for Glover D. Jackson in the El Paso Herald Post, dated 3 August 1941. It read:
Funeral arrangements for Glover D. Jackson of Sierra Blanca are pending with Kaster and Maxon.
You might find more information if you write Kaster/Maxon at 8817 Dyer Street, El Paso, TX 79924.
Sierra Blanca is about 70 miles East of El Paso in Hudspeth County.
If you find where he is buried please let me know.