Frank McGrath was an actor known best known for his role of Charlie Wooster in the television series
He died on May 13, 1967 in Beverly Hills, California.
Sources:
"Frank McGrath." Find a Grave. November 08, 2000. Accessed October 28, 2021. https://www.findagrave.com/memorial/18352/frank-mcgrath
Freese, Gene Scott.
"'Wagon Train' Actor Frank McGrath Dies."