[7][8][9] In late 1941, after Tex Avery left to direct Speaking of Animals series for Jerry Fairbanks Productions, he was replaced as the unit director by Bob Clampett.

He briefly was a cartoonist on Happy Comic's Rowdy Runner and a January 1945 issue of a military magazine called "Service Ribbin".

His animation became noticeably more subdued during this period owing to both McKimson's more rigid directorial standards and Scribner's own deteriorated physical state, but he still got away with energetic scenes, like in Hillbilly Hare (1950), Hoppy Go Lucky (1952) and Of Rice and Hen (1953).

[17][18] His only completed work not associated with UPA or his former colleague Melendez is a 1968 training video for IBM called A Computer Glossary and two credits on the first two episodes of Yogi's Gang.

Scribner's deteriorated mental state had rendered his work unusable (with Bakshi describing his drawings as "absolutely hideous"), and most of his animation was thrown out or overhauled as a result.

[25][26] Cartoon Brew puts him on Number 18 on the list of "25 Great Cartoonists You Should Know"[27] John Kricfalusi is a "Scribner fanatic" and is the reason why he has a despise for Disney animation.