Karp also scripted the comic book Donald Duck Finds Pirate Gold, the first American Donald Duck adventure comic. The story was based on an unproduced Walt Disney Studio animated feature, and was illustrated by Carl Barks and Jack Hannah.
Bob Karp's brothers, Hubie and Lynn, were in the comics field as well. Bob (writer) and Lynn (illustrator) created the newspaper strip The Middles, which ran from 1944 to 1955 through Consolidated News Features.
Karp was also responsible for scripting Merry Menagerie, the 1947-1962 Disney comic panel about animals.