Source: Rockford Streamlined, by Rockford Chamber of Commerce, 1941, page 57
From Polk’s Rockford City Directory for 1941:
Forbes, Alex D (wife H Louise) v-pres Gunite, home: 1415 Greenmount St.
Forbes, Duncan P (wife Mary V.) pres Gunite, h1419 National. Also Duncan P. Forbes jr., same address
Forbes, John A (wife Elsie A.) v-pres Gunite, home 2211 Harlem Blvd.
forbes, Seely P lawyer 711 Talcott Bldg., h 633 N Main St.