Prompted by another post, I looked up 124 Columbia Heights in the 1940 census. A few interesting things: all occupants are listed as having the profession of "Sell- Religious books," except Rutherford who is listed as an "Editor." Odd that they aren't listed as ministers.
Also, all the educational levels of the occupants were provided- many had not even graduated high school and some not even grammar school. A few names jumped out (number= highest grade completed with H as high school and C as college):
K Klein 8
G Suitor H1
H Covington H4
F Franz C4
M Henschel H2
N Knorr H4
R Kurzen C3
M Larson H4
JT Rutherford C3
C Wise 4
All white males with just a few white females. What a difference some distance makes!