The Little Landers Historical Society is not in Tujunga. It is located at:
Lake Norconian Club Estates
1000 Fifth Street
Norco, California 92860
The society preserves the history of the Little Landers Colony (founded 1913 by William E. Smythe in present-day Tujunga/Sunland) and the later Lake Norconian Club (luxury resort, then Naval Hospital, now VA/CA rehab). The archives and museum are in Norco.
Tujunga's local history is held by the Little Landers Historical Society (same org, but based in Norco) and the Bolton Hall Museum (Tujunga) – operated by the Little Landers Historical Society. Bolton Hall (1913) is at 10110 Commerce Ave, Tujunga, CA 91042.