| Source: The St. Louis Builder/The Builder/The Realty Record and Builder, 1899-1911 (incomplete run) Location: Oversize / St.L. / 05 / R22 | |
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| Corporate Name: | John O'Brien Boiler Works Co. |
| Address: | southeast corner of 12th and Howard |
| Volume: | VI |
| Issue: | 10 |
| Date of Publication: | December 1899 |
| Page: | 50 |
| Remarks: | building permit |
