Grant Simmons
Grant Simmons not only was an animator, he also directed and wrote. The list of big name companies he animated for includes Walt Disney Studios (where he worked on Dumbo and Fantasia), Columbia, MGM, and eventually he co-founded his own company Grantray-Lawrence in 1954. Simmons worked on The Marvel Super Heroes and Spiderman series in the 1960s and 1970.
Crew

Little Johnny Jet
Animation

Ventriloquist Cat
Animation

Officer Duck
Animation

Put-Put Troubles
Animation

The First Bad Man
Animation

Pickled Puss
Animation

Beyond Right & Wrong: Stories of Justice and Forgiveness
First Assistant Editor
Broadway Bow Wow's
Director, Writer

Dig That Dog
Director, Writer
River Ribber
Story

Symphony in Slang
Animation
Catnipped
Story

Donald's Dog Laundry
Animation

Pluto's Playmate
Animation

Gay Purr-ee
Animation
The Foul Kin
Director
Hop and Chop
Director

Bad Luck Blackie
Animation

Sleepy-Time Squirrel
Animation

Loco Lobo
Animation

Dog, Cat, and Canary
Writer

Tooth or Consequences
Animation
The Disillusioned Bluebird
Animation

Planet Patrol
Director

Half-Pint Pygmy
Animation

Lucky Ducky
Animation

Millionaire Droopy
Animation

Cat's Meow
Animation

Flora
Animation

Hey There, It's Yogi Bear!
Animation