Born in Winchester, New Hampshire; sailed for Pacific on whaler in early 1822; spent six months in the Hawaiian Islands; married Louisa Barnes in 1831; moved to upstate New York; introduced to the Church by his sister-in-law, Caroline Crosby, and baptized with his wife in 1838; resided in Nauvoo, Illinois; called along with Benjamin Grouard and two others on mission to Hawai‘i in 1843; after reaching Society Islands, determined to labor in French Polynesia, having found success on Tubuai; returned to U.S. in 1847 following the 1846 expulsion of the Latter-day Saints from Nauvoo; reunited with his wife and children in Salt Lake City; left on another mission to the Society Islands in 1849, traveling much of the way to California in company with GQC; joined by his wife and daughters in Tahiti in 1851; returned with his family to the U.S. the following year due to government restrictions placed upon the Latter-day Saints; made his home in California, first in the Latter-day Saint settlement of San Bernardino and then in Anaheim, where he died. (See Jenson, BE, 3:698–99; Landon, To California in ’49, 185; Ellsworth, Journals of Addison Pratt; Ellsworth, History of Louisa Barnes Pratt, 414; Lyman, Payne, and Ellsworth, No Place to Call Home, 567; Owens, Gold Rush Saints, 392; GQC journal, Dec. 15, 1850; Feb. 20, June 3, 1851; Mar. 20, 1854.)