There are a lot of Lockhart but I didn't find a Roy Edward Lockhart. 88 years old I'm guessing he was born around 1874. I will do more searching. Was his Wife from Crowley ? Did his son James live in Crowley, La ? I think I saw a James Lockhart in the obits index...
I have to work tuesday so I will only be able to do just a little searching (I'll have all day Wednesday) I'll check the census on Wednesday.