Born: September 13, 1858, Newark, New Jersey.
Died: December 13, 1938, Manhattan, New York.
Buried: Mount Pleasant Cemetery, Newark, New Jersey.
Frank was the son of John Sealy and Lydia Tuttle. He played the organ at the Fifth Avenue Presbyterian Church, New York City, and as of 1930, was head of the American Guild of Organists.
If you know where to get a good photo of Sealy (head & shoulders, at least 200×300 pixels),