There will be no list for something of that nature, because there was no central agency to have recorded that sort of thing in the early 20th century. However, if you go to the State Archives website www.sos.louisiana.gov
and under vital statistics you can find death certificate index online. Put in the year and surname and see what's available. You'll have to get the actual copy of the certificate by ordering it from the State Archives. Back in the 1920s in rural areas, particularly after a large disaster, I would suspect that some burials were not registered with the state. So you may turn up empty handed on some of them.