sentences:  However, the Museum of the City of San Francisco's original web site, operated directly by Gladys Hansen, remained independent, and in 2003 renamed itself as the Virtual Museum of the City of San Francisco.Hansen's personal research collection of artifacts from the 1906 San Francisco earthquake also remained in her possession.The San Francisco Museum and Historical Society took over management of the Old San Francisco Mint in 2004, with plans to make it the museum's permanent home.