Ipswich honored the valiant men of the community who answered the country's call to arms in World War I and those who made the supreme sacrifice, naming William C. Dickerson, Clarence W. Elstad, Clifford Evans, Einer Jorgenson, William Keppler, Adolph Forkel, Carl Neis, Benjamin J. Picton, Walter L. Stanard, Harry A. Stroup, Andrew Schaurer, and Matt Kirzinger. It also paid tribute to the vision, foresight, and tireless energy of Joseph W. Parmley and his co-workers, who in 1912 founded the Yellowstone Trail, a trans-continental highway whose first portion was built from Ipswich, its home, east to Aberdeen, and which grew from that beginning to span the nation from Plymouth Rock to Puget Sound. Ipswich was identified as the home of the Yellowstone Trail, organized in 1912, on Highway U.S. 12 at Charles Collier Memorial Roadside Park.