Bio-bibliographical index of musicians in the United States of America since colonial times
Prepared by the District of Columbia Historical Records Survey Division of Community Service Programs Works project Administration
Washington, DC: 1941, 439 p.
Witmark, Isidore
Goldberg, Isaac
The story of the house of Witmark : From ragtime to swingtime
By Isidore Witmark and Isaac Goldberg
New York: Lee Furman, Inc., 1939
Fisher, William Arms
One hundred and fifty years of music publishing in the United States.
An historical sketch with special reference to the pioneer publisher
Oliver Ditson Company, Inc. : 1783-1933
Boston: Oliver Ditson Company, Inc., 1933