By September 1903, the Moran & Wolfersperger ads were stating that they had fitted their ejectors to over 500 Parker Bros. guns --
American Field, September 5, 1903.jpeg
By 1904, they had reformed as Moran & Wolf Gun Co. with C.A. Cooper as President, Ross C. Wolfersperger as Vice President and Mathew E. Moran as Secretary, and their ads were offering "Our new Breech=Loading Hammerless Shotgun."
American Field, April 23, 1904.jpeg
In the Chicago City Directory for 1904, there is also -- Crowdus Battery Co. Frank H. Cooper pres; Chas. A. Cooper treas at the same 541 Wabash Avenue address. Chas. A. Cooper is also listed as treas of the Crowdus Automobile Co. also at 541 Wabash.