John Daggett Hooker (1838–1911), was an American ironmaster, amateur scientist and astronomer, and philanthropist who made the initial donations for the Hooker Telescope.[1]
Born in Hinsdale, New Hampshire, he moved to San Francisco, California in 1861. He married Katharine Putnam Hooker in 1869, and they had a daughter in 1875 and a son in 1878. They moved to Los Angeles sometime after the birth of their children. He made his fortune in hardware and steel-pipe, rising to Vice President of Baker Iron Works. He then went on to serve as President of Western Union Oil Company. He founded the California Academy of Sciences.
Through a collaboration with George Ellery Hale, he brought Mount a 10-inch telescope to the Mount Wilson Solar Observatory. He later partly funded the creation of the 100-inch reflector, with additional underwriting via the Carnegie Institute.[2] A falling-out between Hooker and Hale lasted until Hooker's death in 1911, but the remaining funds were secured, and the telescope became operational in 1917.
Hooker was also an important benefactor to naturalist John Muir, who stayed at Hooker's home several times in 1910 and 1911, where he did much of his writing from that time.[3][4]