Jarvis Township is located in Madison County, Illinois, in the United States.

Hall, Sr., James Watt, Isham Vincent and others, all of whom settled here before the organization of the state in 1818.

Robert Seybold made an entry of 100 acres, part of the northwest quarter of section 1, in 1814.

The second military station in the county was established in Jarvis township a short distance from where Troy now stands.

[3] In an address delivered by Dr. John S. Dewey at the United States centennial celebration in Troy on July 4, 1876, he stated that Jacob Gregg settled the old Baird place in 1804 and planted the old pear tree which up to that time was still standing, and in 1865 yielded a crop which was sold in Dubuque, Iowa, for $125.