Elmwood (Sault Ste. Marie, Michigan) now Missouri and Arkansas, and in 1820 he was the topographer on an expedition through the upper Mississippi River and Lake Superior regions. After publishing an 1821 book on his travels, Schoolcraft was appointed in 1822 as US Indian agent at Sault Ste. Marie. There, Schoolcraft accepted an invitation from John Johnston to stay at his house. In 1823, Schoolcraft married Jane Johnston Schoolcraft, daughter of Johnston and his wife "Ozhaguscodaywayquay", herself the daughter of Ojibwe war chief "Waubojeeg", After their marriage, the couple continued to live in the Johnston house. The Schoolcrafts had four children: William (1824), who died
Sault Ste. Marie, Michigan are cooler than nearby land areas. This tends to stabilize the atmosphere, suppressing precipitation (especially showers and thunderstorms) somewhat, in May, June and July. In autumn, the lakes are releasing their stored heat from the summer, making them warmer than the surrounding land, and increasingly frequent and strong polar and Arctic air outbreaks pick up warmth and moisture during their over-water passage, resulting in clouds and instability showers. In Sault Ste. Marie, this phenomenon peaks in September and October, making these the wettest months of the year. Also noteworthy is that in Sault Ste. Marie, the year's third wettest month,