1) Didn't Adams deny having said that?
2) In which of his official statements, affidavits and testimonies did Officer Baker say he saw two white men in that area?
In a statement to the DPD, her WC testimony and, most importantly of all, in the 'lost interview' posted on the forum by Tim Nickerson, she says she saw Lovelady and Shelley. The lost interview is important because it's Vicki speaking, it's her own words.
Barry Ernest reports her saying that the Shelley/Lovelady thing was all made up, which is interesting.
As for Baker, it's in the middle of his WC testimony [page 263]:
Senator Cooper. Did you see anyone else while you were in the building, other than this man you have identified later as Oswald, and Mr. Truly?
Mr. BAKER. On the first floor there were two men. As we came through the main doorway to the elevators, I remember as we tried to get on the elevators I remember two men, one was sitting on this side and another one between 20 or 30 feet away from us looking at us.
Mr. DULLES. Were they white men?
Mr. BAKER. Yes, sir.