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Contributor
- Crandall, W. C. (Wesley Clarence), 1878-1947 38
- United States. Army. Corps of Engineers 16
- Kuhn, Lee W. 11
- Rigg, George B. (George Burton) 10
- Tubb, Richard A. 10
- Frye, Theodore C. (Theodore Christian), 1869-1962 5
- Guthrie, Daniel 4
- Li, Hiram 3
- Wick, William Q. 3
- Bond, Carl E. 2
- Bond, Lenora 2
- Long, Jay B. 2
- American Contractor 1
- American Forestry 1
- Anthony, Robert G. (Robert Gene), 1944- 1
- Byrne, John Vincent, 1928- 1
- Carducci, Giosuè, 1835-1907 1
- Castle, Emery N. 1
- Coblentz, Bruce E. 1
- Cone, Joseph 1