Walter Herbert Olin

Colorado Agricultural Experiment Station, Per Axel Rydberg, William Parker Headden, William Levi Carlyle, Philo Kneeland Blinn, Burton Orange Longyear, Wendell Paddock, Walter Herbert Olin, Christopher James Griffith, A. J. Meyer

C. J. Griffith, Orville Blaine Whipple, William Parker Headden, William Levi Carlyle, Philo Kneeland Blinn, Burton Orange Longyear, Wendell Paddock, Walter Herbert Olin