Who said watermelon?

Front:
98:-WHO SAID WATERMELON "WHO SAID WATERMELON"? George Washington Watermelon Columbus Brown I'se black as any little coon in town. At eating melon I can put a pig to shame. For Watermelon am my middle name. BOB UNELE NCL 46827

Back:
1.AM 1944 Syl. Robed above 32991012 sty B139h ANA Bena By Mr Fort Braz, n. c. sillo ablut: I hope this con nos maistu albert Loll. feeling better and that will be soon out sa shatchung are oupe mara neggers New Jersey my trip with the truck Ilow me selected pobe WRITING Al pressed a lot of water mellons and M M Unele Bob