Source: Rockford Register Star, June 30, 2019
Dale Gustafson photo
Martin Gustafson, Inc., ad – 1976 Grand Opening after Expansion
Source: Rockford Register-Republic November 12, 1976
A Digital Collection of Rockford, Illinois History
Source: Rockford Register Star, June 30, 2019
Source: Rockford Register-Republic November 12, 1976