Owners during this time included William Walton, head of an export company in New York City, the British crown, and Joseph Stout.
Bath, the building was completely remodeled to resemble a typical 18th century rural northern Spanish inn, and was opened to the public in July 1959.
[3] The St. Augustine Restoration Inc. acquired the De Mesa-Sánchez House and its contents in 1965 from Mr. and Mrs. Bath for $115,000, the largest property transaction to date in the history of the organization.
[5] It was restored and was part of San Agustín Antiguo, the Preservation Board's 18th century living history museum.
[1] From March through September 1977, a field school from Florida State University led by Kathleen Deagan conducted an archaeological excavation at the De Mesa-Sánchez House, thanks to a grant provided by the National Park Service.