Education
Born in Butternuts, New York, Dewey graduated from Hamilton Academy and Albany Medical College in New York state.
Born in Butternuts, New York, Dewey graduated from Hamilton Academy and Albany Medical College in New York state.
In 1847 He moved west to the newly settled areas Wisconsin and the young settlement of Saint Paul, in what later became the Territory and State of Minnesota. He practiced medicine there and opened the first drug store in Saint Paul settlement. In 1849 Dewey served in the Minnesota Territorial Legislature, House of Representatives representing Saint Paul.
Without outbreak of the Civil War, he helped organize the Minnesota 9th Infantry Regiment and was appointed it Surgeon.
After short service, he resigned on health grounds. He also retired from his medical practice 15 years prior to his 1891 death.
He died at age 69 of pneumonia in Saint Paul and is buried in Saint Paul.