The Historical Society of Southern California's headquarters:
Charles F. Lummis Home and Garden
200 East Avenue 43
Los Angeles, CA 90031

Open to the public Friday to Sunday from 12 p.m. to 4 p.m.
Admission to Lummis Home is free of charge. Donations Accepted.

Mailing Address:
Historical Society of Southern California
P.O. Box 93487
Pasadena, CA 91109

Our business office is open from 10 a.m. to 4:30 p.m.
Phone: 323-460-5632
E-mail: hssc@socalhistory.org