- Minneapolis (Minn.). Engineer Department4
- Minneapolis, St. Paul & Sault Ste. Marie Railway Company4
- Mitchell, John, 1711-17684
- Mudgett, Helen Parker, 1900-19624
- Nolin, Jean Baptiste, 1648-17084
- Ontario. Bureau of Mines4
- Pettibone, S.4
- Powell, Richard L.4
- Preus, J. A. O. (Jacob Aall Ottesen), 1883-19614
- Rogers, Henry D. (Henry Darwin), 1808-18664
- Saint Paul (Minn.). City Engineer's Office4
- Sauer, Wm. C.4
- Tharp, W. E. (William Edgar)4
- Tirion, Isaak, -17694
- United States. Bureau of Public Roads.4
- Valck, G. (Gerard), 1651 or 1652-1726.4
- Vallejos Zuñe, Camilo4
- Walker, John, 1786-18734
- Wilson, Herbert M. (Herbert Michael), 1860-19204
- Wisconsin. State Highway Commission4