Board Thread:Character Discussion/@comment-4417828-20151209140751/@comment-28075-20160108234303

Jarvis is a common name in the Utah / Colorado area where Matt and Trey hail from, because it's a common name in Mormonism, which we all know Matt and Trey are fond of - so I think, for them, it's a sort of localized 'Smith' sort of thing, much like how they use the name Kevin for multiple characters.