If he was never at Oxford and it it wasn't so well recorded that he was, THEN I might think it's possible he and his companions were super-imposed onto a false background. But he was there, and that he was hosted by Abrahams is indisputably recorded. So I just to not see the point.
No Fred, I am not saying that X was not at Oxford. I am saying that the photo was altered.The people in the photo look cut out from another photo and inserted in front of that building.I do not know why it was done.Maybe some others were cut out of the photo, its passingly strange, thats all.