Did not find your "Jones" surnamed ancestors at Zion Rest Cemetery(established pre-1924)or at Star Cemetery (est. circa 1880's)in Shreveport, LA. I then checked the Louisiana State Death Index (LASDI)at the LA Secretary of State's website: www.sos.la.gov
. I think I found in Caddo Parish, LA, both Rose Jones (d 20 Oct 1924 at 75 years old) and Doris Jones (d 27 Mar 1935 at 16 years old). Check website to browse the LSDI for the names of your other LA ancestors who died at least 50 years ago and get info on how to order their death certificates, which may state the cemetery in which they were buried. Cost is five dollars per death certificate. Good luck!