There is an Otis Brown age 49 in the Tampa Tribune obituary index, 18 Feb 1936. There is also an Otis Brown listed, age 40, 19 Feb 1936.I suspect this is one person and the there was a missprint on the age.Do you think this could be the Otis Brown you're looking for? I'll make a trip to the library with in the next couple of days, and make a copy of the obituary. Maybe you've gotten lucky and this is your man.
Do you have the full date of death for Tish Habbard. I don't know if any of the 1937 DeFuniak Springs papers have survived, but I would be happy to check in see if there was an obit for her. Maybe an obit for her could give you some clues.