| 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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| Architect Last Name: | Gruen |
| Architect First Name: | Wm. |
| Architect Middle Name: | H. |
| Corporate Name: | Princess Hotel |
| Address: | Olive St. between Grand and Vandeventer |
| Volume: | XVIII |
| Issue: | 2 |
| Date of Publication: | May 1911 |
| Page: | 83 |
| Remarks: | [research indicates that the spelling of the architect's surname is Gruen, not Green] |
