Seagrave Holmes

 is a merchant in Rivet City who runs Rivet City Supply in the Marketplace. He deals in random junk and weapons.

Bannon, the owner of Potomac Attire, believes that Seagrave Holmes is trying to take over his seat in the city council. See Bannon's page for info on this mini-quest. If you complete the mini-quest in Seagrave's favor, he will grant you a 10% discount on what he's selling and will buy what you're selling for 10% more.

If you are working on the Wasteland Guide quest, he is one of the persons to talk to in finding out the History of Rivet City

Apperances
 only appears in Fallout 3.