Sibling Revelry, about Stew and his older sister, Lori, and their single mom, was by Man Martin and ran from 1990 to 1995. This was part of the Lew Little Enterprise lineup. Lew Little basically served as an "agent" for comic strips and outsourced the actual syndication work to bigger syndicates, although on some, Little actually distributed himself.
In the case of this strip, Lew Little initially distributed it himself, then later had it "outsourced" to Universal Press Syndicate.
Man Martin all but left cartooning and now focuses on literature. His debut novel, Days of the Endless Corvette, came out in 2007.
I only have these three strips. If anyone has more strips, or basically anything else about the strip, please let me know in the comments.