| 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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| Last Name: | Milligan |
| First Name: | Rockwell |
| Middle Name: | M. |
| Volume: | VIII |
| Issue: | 4 |
| Date of Publication: | June 1901 |
| Page: | 22 |
| Remarks: | listed as architect of Seaton Infirmary in Austin, Texas |
