SpongeBuck SquarePants was an old Western hero who lived in Dead Eye Gulch. He sometimes hung out at the Krusty Kantina. He rescued Dead Eye Gulch from being taken over by Dead Eye Plankton in 1870, the "Wild West period." He is best friends with Pecos Patrick. Both ancestors seem to have the characteristics of the present SpongeBob and Patrick. SpongeBuck only appears in the episode "Pest of the West" as the main protagonist. After the events in the episode ended, he became the Father of Bikini Bottom and founded the modern city of Bikini Bottom.
SpongeBob is upset that he doesn't have any famous relatives like his friends. Wanting to help, Sandy helps SpongeBob search through his family tree. There he learns of his ancestor SpongeBuck Squarepants, who saved Bikini Bottom from being taken over by Dead Eye Plankton.
SpongeBuck is a sponge and he looks very similar to SpongeBob. The only major difference is the clothing; SpongeBuck has a bow-tie, a black bowler hat with a bell, a striped shirt and a pocket watch (tucked into his pocket; the chain hangs loose). SpongeBuck was fairly easy to please and he loved to Spurskate.