[1] He graduated from the United States Military Academy in the Class of 1887 and received a Ph.D. from Johns Hopkins University in 1893.

His biggest contribution was that of telephone carrier multiplexing in 1910 for which he was elected to the National Academy of Sciences in 1919.

[7] In September 1900 Squier sailed from New York for Manila on the cable ship USAT Burnside.

He was in command of a 25-man Signal Corps detachment that laid the first American telegraph cables in the Philippines.

General Squier Park, a historic district and waterpark in his hometown of Dryden, Michigan, is named in his honor.