Allen, Samuel Edward was born on August 12, 1858 in New Lebanon, Indiana, United States. Son of Arthur P. and Rachel Josephine (Dodds) Allen.
Graduated from the United States Military Academy, 1881, Coast Artillery School, Fort Monroe, Virginia, 1892.
Commissioned Second lieutenant 5th Artillery, June 11, 1881. Advanced through the grades to colonel, Coast Artillery Corps, February 2, 1911. Instructor philosophy, United States Military Academy, 1892-1896.
Retired at own request, after 42 years service, July 1, 1919.
Married Conchita Alvarez de la Mess, December 9, 1885.