Gollum was also a hobbit back in his Sméagol days.
Yes, a "Stoor Hobbit", a type that developed great strength, an affinity for water, learned to swim, and even wore boots to keep their feet dry.
Bilbo, Frodo, Pippin, and Merri were a mix of Harfoot and Fallowhide hobbits, known because they descended from "The Old Took", a known Fallowhide. They were generally thinner & a bit taller, and were more adventurous, making them suspect among the Hobbit community.
Samwise was probably mostly a Harfoot hobbit, as he stockier than the other 4 Fallowhide-stock hobbits in the story, and was generally more shy of adventure.
</MASSIVE_NERD>