Looking for " Francis Frederick Fowler ."

His birth year is estimated to be 1927. 

He had 2 children with " Mary Lou Parrish," "Margaret Francis Parrish/Fowler"  born in May 1946 & " Leonard Lee Parrish/Fowler"  born in 1948.

 Mary & Francis were never married.  The children were born in McAlester, Oklahoma.

 Any information would be greatly appreciated!