"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
In 1984 Koppes left Eska to serve as the labor liaison with United Way of Dubuque Area Tri-States and retired in 2014. He was inducted into the DUBUQUE AREA LABOR HALL OF FAME in 2015.
"3 Inducted into the Dubuque Area Labor Hall of Fame, Telegraph Herald, February 8, 2015, p. 5