Source: The Green River News. newspaper of The Green River Ordnance Plant, (GROP), Vol. 2, No. 15; Jan. 12, 1945
**Page 1 and 2 Not Tagged
A Digital Collection of Rockford, Illinois History
Source: The Green River News. newspaper of The Green River Ordnance Plant, (GROP), Vol. 2, No. 15; Jan. 12, 1945
**Page 1 and 2 Not Tagged
Source: Rockford Labor News, Friday, Feb. 22, 1974 C-2
Source: The Green RIver News. employee newspaper of The Green River Ordnance Plant, Dixon IL, 1-28-1944
Source: Rockford Morning Star March 3, 1944
Source: Rockford Labor News, 12/6/1057, Page 4Dr. Louis Ferkel dentist
Source: 815 Magazine article, Spring 2017, page 73
Source: Rockford Register Star 5-20-2016
Source: Picturesque and Descriptive History of Rockford, Winnebago County, 1887
Source: Rockford Register-Republic May 20, 1957