Searching for any information

I am looking for any information on a Joe P. Dogan. Born in Mississippi on August 22 1926 and died in Lancing, TN on Jbue 12, 1980. Need to find any living relatives and could really use some advice on the researching. I have been unsuccessful with almost everything that is necessary. Can not find a picture or any living family. Anyone willing to help this would be greatly appreciated.