San Francisco in the 1970s a disaster area. In the same year, with bankruptcy imminent for the San Francisco Ballet, a grassroots effort brought national attention to the association. Prior to the discovery of the first AIDS case in 1981, Dr. Selma Dritz, the city's medical epidemiologist, became alarmed at the increase in sexually transmitted diseases among the city's gay men, opining that epidemics had been triggered after 1974 by "political and social changes in the city". "The Grateful Dead Movie" was filmed in 1974 in San Francisco during the Grateful Dead's October 1974 five performances at the Winterland Ballroom. After the 1974 kidnapping of
San Francisco Parks Trust San Francisco Parks Trust San Francisco Parks Trust was a U.S. non-profit organization dedicated to the preservation and enhancement of parks in San Francisco, California. In 2011 the San Francisco Parks Council and San Francisco Parks Trust merged to form the new San Francisco Parks Alliance. Founded in 1971 with a $50,000 grant from developer and philanthropist, Walter Shorenstein, San Francisco Parks Trust, formerly Friends of Recreation & Parks, began as an all-volunteer organization dedicated to supporting San Francisco parks. SFPT's offices are located in historic McLaren Lodge at the eastern end of Golden Gate Park, overlooking the City Tree