Category:Lionel Mapleson

**Lionel Mapleson**
	Librarian of the Metropolitan Opera
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Date of birth	23 October 1865
Date of death	21 December 1937
Place of burial	Calvary Cemetery;
Occupation	librarian;
Employer	Metropolitan Opera (1889–1937);
Spouse	Helen Mapleson;
Authority file
	Q10318839; ISNI: 0000000033992326; VIAF ID: 60845788; Library of Congress authority ID: n97864171
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