5 rms., Health Center opened 1928, in 1936, was at 331 Crosby
Builder & Contractor (journal) 11/9/16, p. 21 (NofC)
Altadena by Sara Noble Ives (book), p. 268
| Code | Description |
| 1S | Individual property listed in National Register by the Keeper. Listed in the California Register. |
| 3CD | Appears eligible for California Register as a contributor to a California Register eligible district through a survey evaluation. |
| 3CS | Appears eligible for California Register as an individual property through survey evaluation. |
| 3S | Appears eligible for National Register as an individual property through survey evaluation. |