Boswell, H. James.  American Blue Book Western Washington, Seattle, Lowman and 
Hanford Co., 1922.  p. 140.

DANIEL B. TREFETHEN, prominent attorney of Seattle, is a native of New 
Hampshire, and was born in 1876.  His early educational training was in public 
schools, following which he attended Amherst College, and graduated in 1898 
with the degree of B. A. His legal training was in Harvard, where he graduated 
in 1901, with the LL. B. degree.  The same year he located in Seattle and 
entered upon the active practice of his profession, and was associated with 
Ira Bronson until 1908, following which he formed a partnership with Loren 
Grinstead under the firm name of Trefethen & Grinstead, and later he became 
associated with Howard M. Findley, under the firm name of Trefethen & Findley.  
He has been active in the affairs of the bar association and has served on 
several of its most important committees.  In 1908 he became a member and 
president of the library board and served consecutively under various city 
administrations, making one of the most progressive members that body has ever 
had.  Mr. Trefethen is a member of the board of trustees of the Chamber of 
Commerce and chairman of that organization's Civic Bureau.  He is a past 
potentate of Nile Temple of the Shrine and Past Commander of Lawson 
Consistory.  He also holds membership in various other Masonic bodies.  He has 
served as president of the Young Men's Republican club and has been active in 
the activities of that party in the northwest.  Mr. Trefethen, in 1906, 
married Miss Anna Annable, and the couple have two boys.

Submitted by: Judy Bivens

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Notice: These biographies were transcribed for the Washington Biographies
Project.  Unless otherwise stated, no further information is available on the
individual featured in the biographies.