Creator
- Oregon Agricultural College. Experiment Station1
- Oregon State Agricultural College. Lambda Chapter Of Omicron Nu1
- Oregon State College. Poultry Science Department1
- Pennsylvania. Governor (1923 1927 : Pinchot)1
- Pinchot, Gifford, 1865 19461
- Somervell & Putnam1
- Thelen, Rolf1
- Thomas & Mercier1
- Thomas, Lee1
- Truax, T. R. (Thomas Roy), 1886 1
- United States. Department Of Agriculture1