Chepstow is an Italianate house museum located at 120 Narragansett Avenue in Newport, Rhode Island, built in 1860.

[1] Edmund Schermerhorn hired George Champlin Mason Sr. to build the house in 1860 as a summer home.

Emily was first cousin of Lewis Gouverneur Morris who married Anita de Braganza and owned Malbone in Newport.

[11][a] The property remained in her family's possession until it was donated to the Preservation Society in 1986 upon Alletta Morris McBean's death.

Among the American paintings bequeathed to the Society that hung at Chepstow were works by George Harvey, Fitz Hugh Lane and Granville Perkins.