While at Eastern Illinois, Caldwell served as head coach of the school's football team for three seasons, from 1899 to 1901. He served on the board of trustees for Science Service, now known as Society for Science & the Public, from 1944 to 1947.
While at Eastern Illinois, Caldwell was head coach of their football team for three seasons, from 1899 to 1901. He served on the board of trustees for Science Service, now known as Society for Science & the Public, from 1944 to 1947.