Montague Jetson is a character on The Jetsons.
He meets Emily Scopes, and Celeste Skyler. His great-grand-daughter Judy sees Celeste give him a kiss, when Montague agreed to babysit her son that he would call, Egbert. Then Emily meets his granddaughter-in-law Jane and then Jane and Judy end up thinking that he is about to get married and that he has a newborn baby.
He appeared in the episode "A Visit from Grandpa".