John Mouk, a travel agent (salesman) resided at 2504 Collingwood according to the 1910 and 1911 Polk city directories.  The 1910 and 1921 city directories listed Dr. Granville Wright who practiced from this location.  Carl Longfellow , a bookkeeper, and boarder Leo Longellow lived here in 1912.  The 1921 directory listed nurse Luetta Peltier as a resident.