1879 – Born in Niantic, Conneticut.
1902 – He received his college and graduate training at Boston, Harvard, and Columbia universities.
– He began teaching as one of the first to carry American ideas and methods to Porto Rico.
1908 – He was prominently identified with the work of the Russell Sage Foundation, especially as chairman of the committee in charge of the Backward Children Investigation.
1908-1909 – He lectured on education at New York University. Very many of his articles in educational journals have been reprinted, among them, The Effect of Promotion Rate on School Efficiency.
1940 – He was recalled to active duty with the rank of Brigadier General.
1942 – He retired and was awarded the Distinguished Service Medal.
1946 – Died this year.