McColloms Post Office was the third post office established in the Town of Brighton. Most of the time it was in the McCollom's Hotel, but from 1924 to about 1934, it was at the Sunnyside Hotel. (Geraldine Collins, The Brighton Story, page 60.)
| Clarence A. McArthur | September 16, 1897 |
| Robert H. Stevens | January 24, 1914 |
| Earl C. McArthur | October 19, 1920 |
| Mrs. Nettie A. Selkirk | August 8, 1924 |
