Low, Marcus A. was born on August 1, 1842 in Guilford, Maine, United States. Son of Frederick P. and Mary J. (Robinson) Low.
Educated Auburn (Maine) Academy, and Law School, University of Michigan, 1866-1867. (Doctor of Laws, Bethany College, Kansas, 1901).
Engaged in practice of law, since 1867. President St. Joseph & Iowa Railway Company, 1886-1887 (general solicitor, 1887-1892), Chicago, Kansas & Nebraska Railway Company, 1887-1892, Chicago, Rock Island & Texas, Railway Company, 1892-1900, Chicago, Rock Island & Gulf Railway Company, and of Chicago, Rock Island & Mexico Railway Company, 1902-1903. General attorney, C.,Rhode Island&P. Railway Company, 1892-August 1912, when retired on pension.