from Michigan to northern Wisconsin. Some but not all Potawatomi later left northern Wisconsin for northern Indiana and central Illinois. In 1815, Captain Talbot Chambers was falsely reported to have died fighting Blackhawk Indians on Chambers Island; the island was named for him in 1816. In the spring 1833, Odawa on Detroit Island were baptized during an eight day visit by Frederic Baraga. During an attack in 1835, one of two fishermen squatting on Detroit Island was shot and killed along with one or more Native Americans. The other fisherman was rescued by a passing boat. From the 1840s to the 1880s, the Clark brothers operated a fishing camp at Whitefish Bay that employed 30 to 40 fishermen. Additionally, 200–300 Potawatomi extracted fish oil from the fish waste at the camp. The Menominee ceded their claim to the Door Peninsula to the United States in the 1831 Treaty of Washington. As a result of this treaty, settlers could purchase land, but many fishermen still chose to live as squatters. At the same time, the more decentralized Potawatomi were divested of their land without compensation. Some Potawatomi as late as 1845 made sure to visit and gamble with the Menominee shortly after the periodic annuity payments were issued. Many emigrated to Canada because of multiple factors. One factor was invitations from Native Americans already in Canada for the Potawatomi to join them. Another was British policies to invite and encourage as much Indian emigration from the United States as possible. Even prior to their final emigration, many Potowatomis had periodically migrated into Canada to receive compensation related to their service on the British side during the War of 1812 and to pledge their continued loyalty. Another factor was a desire to avoid the harsh terms of the 1833 Treaty of Chicago, which compensated the Wisconsin Potowatomi with less than what was paid to Potowatomi from the Chicago area. Although not all Potawatomi participated in the Treaty of Chicago, it was federal policy that any who did not relocate westward as the treaty stipulated would not be compensated for their land. Additionally, some preferred the climate of the Great Lakes area over that of the Plains, and American governmental policy for the area beginning in 1837 tended towards forced rather than voluntary Indian removal. Moving to Canada became a way to stay in the Great Lakes area without risking removal. Potawatomi leader