Samuel (Fallout: New Vegas)

 is a trader at the 188 Trading Post in 2281.

Background
His daughter is Michelle. He and Michelle take turns sleeping in the same bed behind the 188 Trading Post makeshift bar. The both of them moved to the 188 Trading Post after escaped convicts  took over Primm

Samuel Kerr and his daughter Michelle may be descendants of Bartholomew Kerr from Fallout:  Tactics. There are no references to this in-game, nor have I seen anyone else mention Kerr from Fallout: Tactics, but given Rose from Modoc, Klamath Bob, and Navaro referrences this is not a hard leap to make. There are other references to Fallout: Tactics specifically such as Paladin Solo who minds the Brotherhood of Steel safehouse who was also in Fallout:  Tactics, but he (the character's voice is definitely male in Fallout:  Tactics, but there was a mention of "her squad" in the game) would have come from the east to make it to the Mojave Wasteland if it is intended to be the same person.

Interactions with the player character
Samuel Kerr can repair the player's items up to 100%, provided that the sufficient amount of caps is present.

Appearances
appears in Fallout: New Vegas.