Being this is all theory, and in the first post I stated that I was putting the non-canon hand-in-hand with the canon, and having new information brought to my attention...
Reinhardt Schneider is Richter's grandson. Richter had at least 2 children. One being a daughter who married Michael Gelhart Schneider, they had a son Reinhardt Schneider before the other of Richter's kids had a kid, giving the Vampire Killer to Reinhardt. Reinhardt going by chronological order would be Victor's uncle. (yes I know Victor's game was cancelled... But he was still created, and this is afterall a fanfic type thing.) Reinhardt not having a kid, hands the Vampire Killer off to Victor, Victor being the coward he was (taking information about him, not the game) Victor just holds onto the Vampire Killer until hearing of Quincey Morris' problem with Dracula. When Victor finally makes it to Quincey Dracula is already dead, and Quincy is dying. After the funeral Victor hands the whip off to John, telling him of the lineage of the Belmonts. Then the Morris' have the whip until Julius has need for it(until Konami decides to change that).
The Morris' had to have split off a while back, being Quincey didn't have any idea what to do about Dracula. Either split off way back or his family didn't want to talk of the Belmonts or Dracula. Every family has a black sheep.
And in confusion to Post #11
Who said IGA messed up with Victor and Jonathan?
And I know the game got cancelled, but that doesn't change the fact that the character was made.
I said that there was non-canon in this.
And thanks for pointing out that Nathan had the "Hunter's Whip"
Responding to Post #12
From the comic I would need Illyana Riktor, I would need Serena from Haunted Castle, Zoe and Dolores from Order of Shadows, Lydie Erlange from Harmony of Dissonance, Lisa from Symphony of the Night, Camilla from Castlevania 64, Annette from Rondo of Blood, Morris from Circle of the Moon, Victor from Castlevania Resurrection, (and if there is even a source picture of him) Michael Gelhart Schneider (Reinhardt's father)
EDIT: Depending on the responces I get... Should I show the Tree with Reinhardt a direct grandson of Richter, or have the Schneiders a split family off of the main tree?