Pioneer Race Course

After construction, it appears to have been bounded by 24th St. (formerly Park St.), 26th St. (formerly Navy St.), Capp St., and Florida St.[4] It was funded and built by local businessmen George Treat and his brother John Treat.

Early houses built within the property are now part of the Shotwell Street historic district,[8] and another house within the property may be the oldest remaining home building in San Francisco.

[9] On May 21, 1854, the Pioneer Race Course was the site of a duel between lawyer George T. Hunt and his friend Numa Hubert, an ex-member of the California state assembly.

[10][11][12] In October 1854, the race course was the site of the stock show at the first California State Fair.

[13] From 1862 until 1863 (some sources report 1865), the site of the course served a civil war encampment called Camp Alert for the 2nd California Cavalry, before they moved to Salt Lake City, Utah.