Retro Lady Killers

 Evelyn Watson was 23 and had 4 children already when she and her brother broke into the home of a 50 year old widow and bludgeoned her to death.  They stole cash & diamonds and then buried them.  This crime happened in 1955 in Houston TX.  I wonder what became of Evelyn's 4 children?  Her brother and she each pointed the finger at each other for the widow's murder.