[2] Born in Pugwash, Province of Nova Scotia, Canada, his parents were Cyrus B. and Margaret S. (Whidden) Eaton.

[4] Eaton immigrated to the United States with his parents who settled in Boston, Massachusetts, in 1878, and in Denver, Colorado, in 1881.

He served in Troop B, First Squadron Cavalry, National Guard of Colorado from 1898 to 1904.

[1] He specialized in oil and shale land property rights, insurance, mining, and corporate law.

He was interested in the establishment of military installations and the expansion of the Fitzsimons General Hospital near Denver.

He was also a member of the Sons and Daughters of the Pilgrims and the Colorado State Historical Society.