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Daniel Guilet (1899–1990), founding 1st violinist
Alois Hába (1893–1973), composer
Family whose members started the quartet. The Hagens played together in a quartet at least as early as the mid-1970s.
Family name of Jan Hambourg (1882–1947), founding 1st violinist, and Boris Hambourg (1885–1954), founding cellist
City of origin (presumably)
Peter Hanson, founding 1st violinist (presumably)
Don and Sybil Harrington Foundation
Organization of origin at the University of Toronto
School of origin
Gustav Havemann (1882–1960), founding 1st violinist
Nathaniel Hawthorne (1804–64), writer
Franz Jospeh Haydn (1732–1809), composer (presumably)
Oliver Heath, founding 1st violinist ?