Welcome Lexus!
Sweet collection of knives for sure.

Like singin and others have said, you need to separate out the celluloid handled knives from the rest or they will take down your whole collection. I cannot emphasize the importance of this enough. I would suggest getting them out in the open with the blades fully open, maybe on a counter top in your garage, a work bench or even a folding table somewhere in your house that's out of the way.
Then get yourself a Miracle Cloth. They will take off the rust and out-gassing oxidation but I have even used one lightly on etched blades and the etch remained. The cloth will turn black with use but it will still be working, even after it turns pitch black. Toss it when it gets thin and full of holes. After wiping, I let the knife sit for at least a day then repeat. When all signs of out-gassing and rust are gone, just buff with a clean cloth (like an old white t-shirt), add a dab of oil to the joints and store your celluloid separate and in the open if possible.
Hope this helps, it has worked for me since 2008.