Son of Arthur Henry Marshall and Carrie Belle Rupp.
Daughter of Harvey Kendall.
Died of Niemann-Pick disease, type C, a rare degenerative neurological disease. Both parents must have a recessive gene.
Son of Joseh Eugene St. John and Sarah Fenwick McPherson.
He had two children by a previous marriage: Sarah Elizabeth St. John, b. 21 June 1943, and Ronald Pierson St. John, Jr. b. 22 Jan 1946.