Source: 18th Battalion Nominal Roll, April 1915, during research into how many Americans joined the Battalion.
Family Search: When Lieutenant William James Maxwell was born on 23 April 1884, in Peekskill, Westchester, New York, United States, his father, Thomas J Maxwell, was 24 and his mother, Sarah H. Page, was 19. He married Margarita Elizabeth Horton on 16 October 1906, in New York City, New York, United States. He lived in Cortlandt, Westchester, New York, United States, for about 5 years. He registered for military service in 1915. He died on 16 October 1963, in San Bernardino, San Bernardino, California, United States, at the age of 79, and was buried in Mountain View Cemetery, San Bernardino, San Bernardino, California, United States.
Born U.S.A.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 