| Source: Union Electric Company employee magazines (titled Wire and Pipe, Union Electric Magazine, Union Electric Quarterly, and Union Electric News), 1913-1969 (incomplete run) Location: St.L. / 05 / Un3, Un3b, Un3m | |
 | |
| Corporate Name: | Weldon Spring Ordnance Plant |
| Volume: | 29 |
| Issue: | 7 |
| Date of Publication: | July 1941 |
| Page: | 3 |
