Officer Rank: Patrolman
Memorial Panel: 49-W: 3
Department: Des Moines, Iowa, P.D.
End of Watch: April 12, 1918
Years of Service: 2
Description: Officer Mattern was patrolling his beat when he heard shots fired. As he ran in that direction he accosted the bandit who shot at him. Officer Mattern returned fire but was struck in the abdomen. Officer Mattern was taken to the hospital where he died four days later. The suspect was not captured.