In 1830 the city fathers of
Detroit consulted with Eaton about their search for a public lecturer on science; he strongly recommended the youthful Houghton. He was enthusiastically received in Detroit and rapidly became one of its best-known citizens, with the young men of his acquaintance soon styling themselves "the Houghton boys". Houghton quickly was selected by
Henry Rowe Schoolcraft,
US Indian Agent and geologist, to act as physician-
naturalist on expeditions through
Lake Superior and the upper
Mississippi valley in 1831 and 1832. On these trips Houghton did extensive
botanical collecting, investigated the Lake Superior copper deposits of Michigan's
Upper Peninsula, and provided medical care to the Indian tribes they encountered. Houghton administered more than 2,000
smallpox vaccinations to Indians in the
Chippewa region over the course of his two months exploring with Henry Schoolcraft in 1832, undoubtedly saving many lives. Houghton estimated that the disease had appeared among the Chippewa at least five times in the previous 60 years. In 1833 Houghton married his childhood friend Harriet Stevens; they had two daughters together. He established a flourishing
medical practice in Detroit and earned the affectionate description: "the little doctor, our Dr. Houghton". By 1836 he had largely set aside the medical profession to concentrate on
real estate speculation. His scientific interests remained strong, however. As
Michigan achieved statehood in 1837, Houghton returned to public life and his love of the natural world. One of the first acts of the new Michigan state government was to organize a
state geological survey, following a pattern already established in other states. Houghton's appointment as the first state geologist was unanimously hailed, and he occupied that position for the remainder of his life. In 1839 he was also named the first professor of
geology,
mineralogy, and
chemistry at the
University of Michigan in
Ann Arbor. He continued to reside in Detroit. He and his survey assistants spent many weeks in the field each season, mapping and evaluating Michigan's natural resources, and his personal influence with state legislators kept the project moving in the face of many financial difficulties. His fourth annual report, based on field work done in 1840, appeared February 1, 1841. It helped trigger the first great mining boom of American history, and earned him the title of "father of copper mining in the United States". He was a founding member and treasurer of the Association of American Geologists and Naturalists (the predecessor of the
American Association for the Advancement of Science) and served on several of its committees. A lifelong
Episcopalian and staunch
Democrat, he was elected to a term as
Mayor of Detroit in 1842, apparently against his wishes. He administered competently, raising the possibility of higher political office, perhaps governor. ==Death==