16th Street (south, first base); Folsom Street (west, third base); 15th Street (north, left field); Harrison Street (east, right field) (per 1899 Sanborn map) Currently: San Francisco Animal Care and Control (animal shelter) 1899 Sanborn map showing the ballpark See also: Thanksgiving Day Disaster Recreation Park (II) Recreation Park (II) Home of: San Francisco Olympics / Athletics / Brewers – California League (1898–1901) San Francisco Seals – Pacific Coast League (1903–1906 until the earthquake) Location: 8th Street (northeast, first base); Harrison Street (southeast, third base); Gordon Street (southwest, left field); Ringold Street (northwest, right field) Currently: L 7 Leasing Center 1899 Sanborn map showing the ballpark National Park National Park Home of: San Francisco Pirates – Pacific National League (1903 only – folded with the league before season's scheduled end Location: corner of 9th and Bryant Streets – "a block and a half" from Recreation Park (II) Currently: commercial businesses Recreation Park (III) Mission District Recreation Park April 6, 1907 through October 19, 1930 (except for 1914). - 1930s Home of: San Francisco Seals – Pacific Coast League (1907–13, 1915–30) Oakland Oaks – Pacific Coast League (1907–12) San Francisco Baby Seals – California Baseball League (1910 only) Mission Reds – PCL (1926–30) Location: 14th Street (north, right field); Valencia Street (east, first base); 15th Street (south, third base); Guerrero Street (west, left field) Photo. Currently: Housing project San Francisco – California State League (1915 only) – appears to have been a road-only team. The league began the season with the intention of playing only Sunday games, figuring to maximize their revenue. Heavy rains in May washed out most of those games, and the league folded at the end of the month. 1914 Sanborn map showing the ballpark Ewing Field Ewing Field, 1914 to 1938 (located in the Richmond District, on Masonic between Geary and Turk; the Seals played at Ewing Field for one year in 1914, but returned to the Valencia Street Recreation Park the next year following many criticisms of the cold, windy, foggy weather at Ewing Field) The ballpark continued to be used for local non-professional games. During a game on June 5, 1926, the stadium caught fire from a cigarette, and soon burned down. In the process, embers started fires across the streets and destroyed several homes. With the ballpark fire raging, the firemen concentrated their efforts on protecting the rest of the neighborhood, including the Presentation