Henry Schley Ervay , merchant, capitalist, was mayor of Dallas , and continued to be involved in the affairs of the city by serving as alderman. .
Henry S. Ervay was born to Jacob Ervay and Sophia Schley in Elmira, New York in 1834. He arrived in Texas in 1857. He married Maria Louise Hickman, daughter of James P. Hickman and Mary Bronaugh onMay 1862. The couple had four children Jimmie Ervay, Harry Ervay, Henry S. Ervay, Jr., and Maude E. Ervay. The first two children died in infancy. Henry Ervay was engaged in several enterprises as a young man including surveying and exploring in the American and Canadian west and working for the Butterfield Overland Mail Company. He and other Texans volunteered to serve with General William Walker in the war for freedom in Nicaragua. He was appointed mayor by Governor Edmund J. Davis in 1870. Even though Ervay was elected by the citizens in 1871, General Joseph J. Reynolds, head of the federal military, ordered his removal and the appointment of Dr. J. W. Haynes. Ervay refused and was jailed, but later released on order of the State Supreme Court. He left Texas with his family for Crip
Source: Wikipedia