Question: Who is the stepchild of Allan Manings?
Sentence (from "Allan Manings"): He was active in the 1950s, 1960s, 1970s and 1980s and was best known for his work in co-creating with his wife, actress Whitney Blake, "One Day at a Time", as well as serving as producer (and later executive producer) of the Bud Yorkin-Norman Lear Tandem show, "Good Times".
Relevant evidence: Yes