The Big Bang,
The Piano Quarterly, p. 33, Summer, 1984

Two Nineteenth-Century Grand Pianos,(co-authored with Lynn Edwards, President, Westfield Center for Early Keyboard Studies), Early Keyboard Studies Newsletter, Vol. I No. 4, pp. 1, 2 September, 1985

A Katholnig Grand Piano from c.1805-1810,
Early Keyboard Studies Newsletter, Vol. III No.2, p. 11 March, 1987

English vs. Viennese Fortepianos,
Westfield Center for Early Keyboard Studies’ Conference and Festival of Recitals: Haydn’s Piano Sonatas,
March 29-April 1, 1990, Smith College, Northampton, MA
One of three essays in Conference Program Booklet, pp. 13-17

Encyclopedia of Keyboard Instruments, Vol. I, The Piano
Edited by Robert Palmieri, 1994, New York & London: Garland Publishing, Inc. 
Three articles: Erard, Sébastien (et frères), pp. 125-126
                     Fortepiano, p. 137
                     The Viennese Piano, pp. 427-429

The Pianos Available to Schubert,
The American Schubert Institute Journal, Premiere Issue, pp. 19-20, January 31, 1997

Visiting the Frederick Historic Piano Collection, Mark Kroll,
Early Music America, Winter, 2007, Vol.13, No. 4,  pp.33-36

The Frederick Collection of Historic Pianos, Benita Meshulam,
Clavier Magazine, December, 2005, Vol.44, No. 10, pp.10-13;
and in the same issue, reviews of three CDs of music played on pianos from the Frederick Collection, by Phillippa Kiraly, pp.20-21

Piano forte: Couple's Lifelong Passion and Collection Turn Old Library into a Grand Playground, Nathan Cobb, 
The Boston Globe, Saturday, May 10, 2003

Where Old Pianos Go to Live: Massachusetts Petting Zoo for 19th-Century Instruments, Anthony Tommasini, 
The New York Times, Thursday, November 22, 2001

Keys to the Past: The Frederick Historic Grand Piano Collection, Barbara Mellin, editor,
Arts Around Boston, Vol. 2, No. 3, Sept./Oct. 1999, p.12-13

The Frederick Collection, Andrew Margrave, RPT, PTG
Northern Virginia Music Teachers Assn. Newsletter
A two-installment article, Aug. and Sept. 1999 issues

Edmund Frederick: Pianos, (from the series, Time Machines: Part III, Private Collections), Mark Longaker,
Early Music America, Vol. 4, No. 4, Winter, 1998-1999 p. 27

The Frederick Collection, Andrew Margrave, RPT, PTG,
The Nova Soundboard, Official Publication of the Northern Virginia Chapter, Piano Technicians Guild, Sept. 1998, pp.1-2

Historic Piano Tour,  Helena Thomas,
Piano Technicians Journal, Feb. 1985, pp. 32-33