[3] Warren was born in Boston in 1872 and attended the Allen School.

He graduated from the Massachusetts Institute of Technology in 1894 with a Bachelor of Science degree in electrical engineering.

[2] In 1940, Warren invented the "singing clock", which instead of a pendulum had a vibrating metal string.

[2] Telechron's clocks remained popular into the 1950s; the company eventually went out of business in 1992.

Warren's early career started as an engineer for Nathaniel Lombard, designing water-driven machinery for the N. Lombard Improved Governor Company in Roxbury, Boston.