Background
Mapleson, Alfred John was born on December 12, 1905 in New York City. Son of Lionel Sevin and Helen Frances (White) Mapleson.
Mapleson, Alfred John was born on December 12, 1905 in New York City. Son of Lionel Sevin and Helen Frances (White) Mapleson.
Music librarian Metropolitan Opera, New York City. Owner Mapleson Music Library, Lindenhurst, New York.
Married Julia Veronica Nunnery. Children: Julia, Peter, Alfred.