Milton Claudius Portmann (October 20, 1888 – August 14, 1967) was an American professional football player in the Ohio League, an attorney, and United States Army Officer veteran of World War I. Milton was born in Jackson, Minnesota.

Arthur was Senator Rob Portman's grandfather making Milton his granduncle.

[16] He also helped Western Reserve to a pair of victories on the ice versus CIT in 1909 and was selected to the WRU 50-Year Football All-Star Team at offensive tackle.

[24] Portmann played in the Ohio League in 1915 with the Massillon Tigers and in 1916 with the Cleveland Indians.

177th Infantry Brigade 353rd Infantry Regiment St. Mihiel Offensive Meuse-Argonne Offensive Defensive Sector Purple Heart (1) OLC WW1 Victory Medal (4) Battle Clasps Portmann enlisted into service on August 27, 1917, at Fort Benjamin Harrison in Lawrence Township, Indiana as a Private in the Officers Reserve Corp of the National Army.

[28] He was stationed in Camp Funston until the 89th Division embarked on its voyage to Europe preparing for war.

On June 3, 1918, Portmann and the 89th Division in New York City boarded the SS Karmala.

[31] The men of Company E would hold this position until August 22, 1918, when they fell back to Manonville in lieu of the 3rd Battalion.

[32] On September 11, 1918, Portmann crashed through German barbed wire that lined their trench.

During routine command patrol morning of September 17, 1918, an aid to Brigadier general Frank L. Winn, then commander of the 177th Brigade, noticed men of Company E were in plain sight of German aircraft or balloon forces.

[37] 353rd infantry Col. James H Reeves defended Portmann stating, "The action of the Commanding General causes the deepest humiliation to one of the bravest, ablest, most brilliant officers I have ever known..." He recommended a promotion to a higher grade.

[38] (Upgraded by US Army to Silver Star) On October 21, 1918 in the drive to Argonne, German artillery shelling increased in the Bois de Bantheville where Portmann commanding the 1st Battalion with the 353rd infantry regiment was located.

[41] He was moved by ambulance train and arrived in Hyeres Base Hospital #99 by direction of his brother Ursus, where as a United States Army physician was stationed.

[44] Four bronze service stars: France, St. Mihiel, Meuse-Argonne, and Defensive Sector Portmann took the bar exam in 1911.

[48] In August 1919 Portmann and five other veterans founded the Army-Navy American Legion Post 54 in Cleveland.