This panoramic shot of Barber Colman employees was taken in October of 1916. Pictured are the entire office and plant force.
Source: Knots V. 1 1917 Published by the Barber Colman Association
Source: google.com Image May 2019
Source: Northwest Quarterly, Summer/Fall 2019, v.16, no. 4
Source: Rockford Register Star, January 1, 2020
Source: Rockford Daily Republic, August 11, 1928
Source: Northwest Quarterly, Spring/Summer 2019
Source: Rockford Daily Register-Gazette, February 24, 1928
Register Star, December 2, 1990, Lisa C. Marinelli.
Source: The Voice of the Rockford Business Community (Chamber of Commerce) October 2019