Alvinza Hayward (1822-February 14, 1904) was a well-known gold mining millionaire who made his fortune in California. He later became a prominent financier and businessman in the San Francisco bay area.
His experience in Michigan vein mining proved invaluable after his move to California in the Gold Rush of 1850. After buying an interest in the Eureka Mine in Amador County, Hayward made new investments and successfully extracted gold where others had failed, later selling shares in a mine which was said to have yielded more than $5,000,000.
Many more successful mining ventures followed, including the Utica/Selkirk mine near Angels Camp, in which Hayward acquired a shrewd one-third interest in the 1880s after consulting with a medium (who examined a quartz sample). In 1901, the near-vertical Utica quartz deposit — twice abandoned, and once believed so unworkable it traded hands for just $50 — was said to have yielded the single richest gold deposit in California. After heavy investment, more than $7,000,000 in gold was removed from Utica, and up to $900,000 in gold bullion was extracted in a single month.
Known in his later life as a "Silver Baron," Hayward also held a significant interest in the silver-producing Comstock Lode after 1864. Hayward also found financial success in timber, coal, railroads, San Francisco real estate, and banking. Hayward was a director of the Bank of California, and in 1870 was one of the original investors in the San Francisco City Gas Company, which would eventually become the Pacific Gas and Electric Company.
Whether true or not, Hayward was often called California's "first millionaire," and in his lifetime was frequently referred to as "the richest man in California." Grandiose and eccentric by turns, Hayward turned even more strongly to Spiritualism in his later years, using mediums to predict business investments (with poor results). Hayward had a difficult relationship with his wife, Charity (1826-1905), whom he married in Wisconsin in the 1840s; their first son, James, was born in 1846, and would die of consumption at age 27. Divorced in 1878, the couple remarried again later that year only to separate again, living the rest of their lives apart. Only two of the couple's eight children survived to adulthood; six others died of mysterious respiratory ailments early in life, prompting recent speculation that Charity Hayward may have had a role in their demise.
Hayward Park, his 800-acre (3.2 km2) estate in San Mateo, included a lake, race track, and deer park. The spectacular 1880 residence was converted into a hotel after Hayward's death. It burned in a 1920 fire.