Schwartz and N.E. Tawa, "Daniel Gregory Mason (ii). The New Grove Dictionary of Music and Musicians online. Further reading External links The Tyranny of the Bar-Line by Daniel Gregory Mason Finding aid to Daniel Gregory Mason papers at Columbia University. Rare Book & Manuscript Library. 1873 births 1953 deaths 19th-century American composers 20th-century classical composers American male classical composers American music critics Columbia University faculty Harvard University alumni People from Brookline, Massachusetts Pupils of George Whitefield Chadwick Pupils of Percy Goetschius American Romantic composers 20th-century American composers Classical musicians from Massachusetts 20th-century American male musicians 19th-century American male musicians