I wanted to see if by chance Arthur B. McKinney was in a Howard University yearbook. The yearbooks or student yearbook type publications go as far back as 1914. I did not spot him in that yearbook. I don’t know if those things covered the medical school.
But I did spot something interesting, addresses. This was not repeated in later yearbooks. So here is a small list of the students in Shaw:
Annie H. Catlett- 943 (or 913) St St NW
Herbert L. Stevens- 922 Florida Avenue NW