- Jefferys, Thomas, -17714
- Johnson, A. J. (Alvin Jewett), 1827-18844
- Luffman, J. (John), 1756-18464
- Max Freissler (Firm)4
- Mills, Ira B.4
- Minneapolis (Minn.). Engineer Department4
- Minneapolis, St. Paul & Sault Ste. Marie Railway Company4
- Mudgett, Helen Parker, 1900-19624
- Oldham, Jerry B.4
- Ontario. Bureau of Mines4
- Peterson, Dean M.4
- Preus, J. A. O. (Jacob Aall Ottesen), 1883-19614
- Prokopovich, N. P. (Nikola P.)4
- Rogers, Henry D. (Henry Darwin), 1808-18664
- Saint Paul (Minn.). City Engineer's Office4
- Setterholm, D.R4
- Setterholm, Dale, R4
- Seutter, Matthaeus, 1678-17564
- Soper, Edgar Kirke, 1886-4
- Tanner, Henry Schenck, 1786-18584