November 20, 1873:
Daniel Gregory Mason is born in Brookline, Massachusetts, USA, the son of Henry Mason, founder of Mason and Hamlin piano and organ builders. His uncle is William Mason, concert pianist and composer, and he is the grandson of Lowell Mason (†1), composer of hymns.
October 8, 1904:
Daniel Gregory Mason marries his brother's ex-wife Mary Lord Taintor Mason, in New York.
February 18, 1916:
Symphony no.1 by Daniel Gregory Mason (42) is performed for the first time, in Philadelphia.
November 15, 1918:
Russians, a cycle for voice and orchestra by Daniel Gregory Mason (44) to words of Bynner, is performed for the first time, in Chicago.
November 23, 1928:
The festival overture Chanticleer by Daniel Gregory Mason (55) is performed for the first time, in Cincinnati.
November 7, 1930:
Symphony no.2 by Daniel Gregory Mason (56) is performed for the first time, in Cincinnati.
November 17, 1937:
A Lincoln Symphony by Daniel Gregory Mason (63) is performed for the first time, in New York.
January 3, 1939:
Amy Beach (71), Daniel Gregory Mason (65), John Alden Carpenter (62), Wallingford Riegger (53), Aaron Copland (38), Elizabeth Sprague Coolidge, Efrem Zimbalist, Olin Downes, and Alfred Hertz sign a letter urging the United States to lift the arms embargo against the “legitimate Spanish government.”
November 6, 1942:
The fifth of 18 patriotic fanfares for brass and percussion commissioned by Eugene Goossens and the Cincinnati Symphony Orchestra, A Fanfare for Friends by Daniel Gregory Mason (68), is performed for the first time, in Cincinnati.
December 4, 1953:
Daniel Gregory Mason dies in Greenwich, Connecticut, USA, aged 80 years and 14 days.
December 8, 1953:
The earthly remains of Daniel Gregory Mason are interred at Mount Auburn Cemetery, Cambridge, Massachusetts.