In 1862, Ebenezer Maxwell sold the newly-built mansion to William and Rosalie Cecilia (Allan) Hunter. In 1855 William Hunter, Jr. was listed in McElroy’s City Directory as a salesman. He married Rosalie Allan on January 30, 1851. The Hunters had five children: William Allan, who died as an infant, Helena, Frances Allan, Rosalie Cecilia and Allan.

From 1857 until 1863 William Hunter, Jr. was a partner in a clothing store; however, in 1863 he shifted from the clothing business to coal. Success soon followed and he was held in high esteem by his peers until his untimely death in 1867. Quoting from the Public Ledger of October 31, 1867:

“Mr. Hunter, whose death was occasioned by a fall from one of the windows of the Fifth Avenue Hotel, in New York, was not subject to fits. The supposition in respect to the accident is, that he stepped upon a rocking chair to look out the window, and while opening the sash, the chair tilted and threw him head long out. He had taken off his coat, as if to retire.”

After the death of William Hunter, Jr., Rosalie married Howard A. Stevenson. Rosalie and Howard Stevenson had one daughter, Augusta Rosalie “Gussie”. After the death of her mother in 1910 and her father in 1931, Gussie lived in the house until her death in January 1956. The Mansion had been in the Hunter-Stevenson family for ninety-six years.