Let me cite a 1904 directory, which may be available in certain libraries :

UNITED STATES. Census, Bureau of the. Benevolent Institutions, 1904. [Washington, D.C.: Govt. Print. Off.], 1905. 335 p. (Special Reports). A directory of 4,207 institutions (excluding 85), with their addresses and statistics: orphanages, hospitals, temporary homes for adults and children, etc. Includes a single alphabetical index to the institutions. (Charities--U.S.) (Hospitals--U.S.) (Orphanages--U.S.) (LC 06002276)

Reg Niles