Lisa, Otis was a son of Henry Bogue Chauncey (January 22, 1915 - April 12, 1952) and Alberta Rebecca Rouse (January 27, 1915 - July 28, 1978) They had 6 children, including Otis. Otis was married to "Jan" (I have her maiden name, but do not post the names of living individuals without their written permission). She is from Iowa I am informed.
Otis was born as you say, July 07, 1942 and died September 14, 1990 in the Vet. Hospital, Fayetteville, North Carolina.
I have nothing for Cheryl other than she is their daughter. She is the only child I have in my base, if there are others.