That year, he completed a high school curriculum in 31 weeks, and subsequently enrolled at Union College from which he graduated in 1895.
Upon his return to the United States, Pollock taught biology, physics, and German at Albany High School until 1900.
Pollock's work drew the attention of Surgeon General Rupert Blue, who asked him to do the same for the United States Army's newly established division of neurology and psychiatry in the midst of World War I. Pollock later devised a similar system for the state of Illinois.
[1] The American Association on Mental Deficiency granted Pollock membership status,[1] and he was elected its president in 1943.
He also served on the medical council of the United States Veterans Bureau, and was elected a fellow of the American Statistical Association.