Osborn served in Troop I Cavalry of the National Guard in 1913 and re-enlisted in 1917.

 

“Osborn received word that Troop I, of the Buffalo National Guard, would go to the front. Being a true American, he immediately flashed back word, “I’m with you.”

"Alex is engaged to be married… So, before starting for Mexico, he will pause long enough for the ceremony which will make both himself and his sweetheart happy-- and their wedding march will be a bugle call."