A chemist. Ernest enlisted July 16, 1862, in the 9th Vermont Infantry under the name Ernest B. Stuart, altering the spelling of his surname. His enlistment also states he was from Bethel, Vermont. After the close of hostilities, he removed from Vermont and was in Chicago at the time of the great fire, 1871, when he was burned out and lost everything. He became a chemist (Severance, B. Frank. Genealogy and biography of the descendants of Walter Stewart of Scotland and of John Stewart who came to America in 1718 and settled in Londonderry, N.H. Greenfield, Mass. : T. Morey & Son, 1905, pg. 144).