This was from Find a Grave for 1967: "Elmcrest Sanitarium was a lovely nursing facility located on Main Street in Churchville, NY.". Try contacting the historian there, Riga Town Historian Ronald Belczak, Riga Town Hall, 6460 Buffalo Rd. Churchville, NY 14428, firstname.lastname@example.org
, 585-637-5546. Note : Many historians are part time, and they may take a while to get back to you. Ot ask a question at the main library is Rochester, https://libraryweb.org/forms/ask-a-librarian-form/
, and ask to be referred to the Local History Dept.