Deacon constantly makes remarks regarding Fallout 3 and the DC Wasteland. He claims to have visited the area in the past and comments on Project Purity, Lyon's Brotherhood of Steel, amongst other things from Bethesda's previous Fallout game. However, it's exceptionally unlikely that Deacon is the same Lone Wanderer that serves as Fallout 3's main character. First and foremost, his timeline of events doesn't match up with the Lone Wanderer's, and beyond his knowledge of the Capital Wasteland, there is no indication that he is the Lone Wanderer.