From:
Roster of the Men and Women who served in the Army or Naval Service (including the Marine Corps) of the United States or its Allies from the State of North Dakota in the World War, 1917-1918 Volume 2 Flagg to Lark

Name: Jerry Merril Lanphear
Army #: 105,903
Registrant: yes, Stark county
Birth Place: Escanaba, Mich.
Birth Date: 29 Jul 1889
Parent's Origin: of American parents
Occupation: miner
Comment: enlisted in Machine Gun Company, 2nd Infantry, North Dakota National Guard, at Dickinson, on June 30, 1917; called into federal service, World War, on July 15, 1917; served in Machine Gun Company, 2nd Infantry, North Dakota National Guard (Machine Gun Company, 164th Infantry), to Jan. 9, 1918; Company D, 2nd Machine Gun Battalion, to death. Grade: Private 1st Class, Aug. 20, 1917; overseas from Dec. 15, 1917, to death. Engagements: Offensive: Aisne-Marne. Defensive: Montdidier-Noyon. Defensive Sectors: Ansauville (Lorraine); Cantigny (Picardy). Killed in action on July 20, 1918; returned to U. S., February 25, 1922; buried, Grave 1481, European Section, Custer Battlefield, Mont. Cited in General Orders No. 1, Headquarters, 1st Division, Camp Zachary Taylor, Ky., Jan. 1, 1920, for gallantry in action and especially meritorious services. Entitled to wear a silver star.

His middle initial is H in his headstone. His name is commemorated on the Buzancy monument but his surname is incribed as Lamphear.