| Digest Nr | Subject and Author |
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| 2008.06.21.03 | J. Lawrence Cook Pseudonyms, from Hi Babit |
| 2008.06.18.02 | J. Lawrence Cook Pseudonyms, from Jeffrey R. Wood |
| 2008.06.16.02 | J. Lawrence Cook Pseudonyms, from Charles Schubert |
| 2007.10.13.05 | FS: Player Piano by J. P. Seeburg, from Jere DeBacker |
| 2007.02.22.01 | J. Lawrence Cook, Perforated Music Roll Specialist, from Ken Vinen |
| 2006.10.29.02 | J. Lawrence Cook on TV, from Alan Wallace |
| 2006.10.29.01 | J. Lawrence Cook on TV, from Randolph Herr |
| 2006.10.28.06 | J. Lawrence Cook on TV, from Donald Barton |
| 2006.10.27.04 | J. Lawrence Cook & Max Kortlander on TV, from Randy Hammond |
| 2006.10.27.03 | J. Lawrence Cook on TV & "What's My Line Medley", from Thomas Ahearn |
| 2006.10.27.02 | J. Lawrence Cook on TV, from Mark Kinsler |
| 2006.10.07.01 | Who Is J. Masin?, from Matthew Caulfield |
| 2006.05.29.02 | J. S. Gebhardt Organ Co., from Nick Hawkins |
| 2005.11.02.04 | Ed Freyer "A" Rolls Attributed to J. Lawrence Cook, from Jack M. Conway |
| 2005.03.25.11 | FS: Thomas J. Nichol Steam Calliope Whistles & Parts, from friesian@ |
| 2005.02.15.05 | J. Lawrence Cook Photos by Duncan Scheidt, from Adam G. Ramet |
| 2005.01.29.06 | Source of Rolls & Parts for J. Chein PianoLodeon, from Ed Schmidt |
| 2005.01.28.05 | Seek Rolls & Parts for J. Chein PianoLodeon, from Rick Jackson |
| 2004.09.02.01 | J. W. Whitlock Violin Playing Machine, from Don Teach |
| 2004.08.27.01 | J. W. Whitlock Violin Playing Machine, from Mark Reinhart |
| 2004.07.13.04 | Seek Collector Robert J. Avary, from Jon Fortunato |
| 2004.03.23.06 | Price of Cremona Model J Sold At Auction, from Mark Forer |
| 2003.11.19.03 | Book on J. W. Whitlock & Wurlitzer Automatic Harp, from Dana Hildebrand |
| 2003.10.22.02 | Book on J. W. Whitlock & Wurlitzer Automatic Harp, from Dana Hildebrand |
| 2003.09.21.03 | "Piping Rock" by J. Fred Coots, from Andrew Barrett |
| 2003.04.24.03 | J. W. Whitlock & Wurlitzer Automatic Harp, from Dana Hildebrand |
| 2003.04.21.03 | Seek Aeolian Piano Rolls by J. Lawrence Cook, from Ed Brown |
| 2003.04.11.01 | Richard J. Howe Collection at Univ. of Maryland, from Charles Davis |
| 2002.08.08.06 | J. C. Deagan Tubular Bell Carillon Photos, from Ed Gaida |
| 2002.08.07.06 | J. C. Deagan Tubular Bell Carillon Photos, from Ed Gaida |
| 2002.08.06.01 | J. C. Deagan Tower Chimes, from Bill Finch |
| 2002.08.03.03 | J. C. Deagan Tower Chimes in St. Louis, from D. L. Bullock |
| 2002.07.31.06 | J. C. Deagan Tubular Bell Carillons, Part 2, from Ed Gaida |
| 2002.07.31.05 | J. C. Deagan Tubular Bell Carillons, from Tom DeLay |
| 2002.07.30.04 | J. C. Deagan Tubular Bell Carillons, from Ed Gaida |
| 2002.05.07.02 | J. Lawrence Cook on "You Asked For It" TV Show, from Jeffrey Borinsky |
| 2002.05.05.01 | J. Lawrence Cook on "You Asked For It" TV Show, from Mike Meddings |
| 2002.04.22.03 | Seek J. Chein PianoLodeon Rolls, from Wayne Tougher |
| 2002.03.04.11 | J. & C. Fischer Piano Company, from Jack M. Conway |
| 2002.03.03.05 | J. & C. Fischer Piano Company, from Juergen Hocker |
| 2001.12.13.03 | Ampico Artist J. Milton Delcamp, from Richard Groman |
| 2001.11.30.06 | Ampico Artist J. Milton Delcamp, from Richard Stibbons |
| 2001.11.01.05 | J. Lawrence Cook - Unpublished Photos, from Mike Meddings |
| 2001.06.29.01 | J. Lawrence Cook at 1972 AMICA Convention, from Mike Meddings |
| 2001.06.21.04 | J. Lawrence Cook Song Service Studios, from Mike Meddings |
| 2001.05.31.02 | Jelly Roll Morton & J. Lawrence Cook at Web Site, from Mike Meddings |
| 2001.05.01.01 | Serinettes by J. Salle of Mirecourt, from Francoise Dussour |
| 2001.04.04.06 | "Hot Papa Blues" Played By J. Lawrence Cook, from Bob Billings |
| 2001.03.31.06 | Cremona J Auction Reserve Price Not Met, from Terry Smythe |
| 2001.03.17.01 | "Hot Papa Blues" Played By J. Lawrence Cook, from Bob Billings |
| 2001.02.15.04 | Jelly Roll Morton & J. Lawrence Cook at Web Site, from Mike Meddings |
| 2001.02.08.01 | Richard J. Howe Collection at Univ. of Maryland, from John A. Tuttle |
| 2001.02.01.06 | J. Lawrence Cook Piano Instruction Folio, from Mike Meddings |
| 2001.01.29.06 | Cremona Style J Orchestrion Found, from Don Teach |
| 2001.01.19.05 | J. Lawrence Cook and Percy Grainger, from Mike Meddings |
| 2000.12.28.04 | J. Lawrence Cook & Tempo Music Publishing Company, from Mike Meddings |
| 2000.11.30.03 | J. Lawrence Cook Autobiography At Web Site, from Mike Meddings |
| 2000.11.12.08 | J. Lawrence Cook Song Transcriptions, from Andy Taylor |
| 2000.10.07.01 | J. Lawrence Cook Family, from Mike Meddings |
| 2000.09.24.05 | J. Lawrence Cook Autographed "A" Roll Catalog, from Philip Jamison |
| 2000.08.10.04 | J. Lawrence Cook & Ferd 'Jelly Roll' Morton, from Mike Meddings |
| 2000.07.20.02 | J. Lawrence Cook and Milt Hinton, from Mike Meddings |
| 2000.07.13.03 | J. Lawrence Cook at MBSI 1974 Convention, from Mike Meddings |
| 2000.06.30.14 | Motor Hum in J. Chein PianoLodeon, from Pete Knobloch |
| 2000.06.30.12 | Parts for J. Chein PianoLodeon, from Michael Stehney |
| 2000.06.29.09 | Seek Parts for J. Chein PianoLodeon, from Kent Howell |
| 2000.06.18.05 | Genius of J. Lawrence Cook, from Andy Taylor |
| 2000.06.17.03 | J. Lawrence Cook in Ebony Magazine Article, from Mike Meddings |
| 2000.06.09.04 | J. Lawrence Cook & Jelly Roll Morton Research, from Karl Ellison |
| 2000.05.29.01 | B.A.B. Music Rolls & J. Lawrence Cook, from Jeff Alterman |
| 2000.04.24.10 | FS: J. Chein PianoLodeon, from Milissa Moryc |
| 2000.02.20.08 | QRS Artist J. Russel Robinson & "Margie", from Robbie Rhodes |
| 2000.01.04.08 | Genius of J. Lawrence Cook, from Harvey Roehl |
| 1999.09.12.09 | Location of J W Walker and Sons Organ Maker, from John Page, UK |
| 1999.09.08.10 | J. W. Walker Organ Builder, from Glenn Amer |
| 1999.08.12.10 | Photo of J. C. Deagan, from Matthew Caulfield |
| 1999.08.11.10 | Seek Photo of J. C. Deagan, from Jim Campbell |
| 1999.07.18.02 | J. P. Seeburg Recollections at Seeburg Web Site, from Mark Forer |
| 1999.07.02.06 | FS: J. C. Fisher Ampico Grand Player, from Tom Gregory |
| 1999.06.30.02 | Ernest J. Wilde Steam Calliope in Sacramento CA, from Marc Kaufman |
| 1999.05.06.12 | Baldwin Players & A. J. Norris Co., from Steven Phelps |
| 1999.03.14.02 | PianoLodeon Rolls Arranged by J. Lawrence Cook, from Bob Billings |
| 1998.11.21.10 | FS: J. C. Fisher Ampico Grand in Wisconsin, from Tom Gregory |
| 1998.09.19.16 | J. Rosamond Johnson, Ampico Ragtime Artist, from Rob DeLand |
| 1998.09.16.09 | Harry J. Lincoln and Charles C. Sweeley, from Matthew Caulfield |
| 1998.08.13.08 | Marches by E. T. Paull and Harry J. Lincoln, from Matthew Caulfield |
| 1998.08.13.07 | Marches by E. T. Paull and Harry J. Lincoln, from Robert Perry |
| 1998.08.11.09 | Thirty-Eight Marches by Harry J. Lincoln, from Matthew Caulfield |
| 1998.08.11.07 | Marches by E. T. Paull & Harry J. Lincoln, from Matthew Caulfield |
| 1998.08.05.04 | J. Chein Toy Player Piano, from Bob Eperjessy |
| 1998.07.27.08 | Politically Incorrect Rolls & J. Lawrence Cook, from Andy Taylor |
| 1998.07.15.09 | Rolls for J. Chein Toy Player Piano, from Bob Vivian |
| 1998.07.13.11 | Seek Rolls for J. Chein Toy Player Piano, from Mike Carty |
| 1998.06.23.08 | J. W. Jenkins Sons Piano, from Andy Taylor |
| 1998.06.22.22 | J. W. Jenkins Sons Piano, from Wolfgang Brommer |
| 1998.04.06.15 | 'The Lightning Switch', arr. by K. J. Alford, from Jim Canavan |
| 1998.03.09.08 | J. Lawrence Cook, from Matthew Caulfield |
| 1998.03.04.09 | Recollections of J. Lawrence Cook, from Hal Davis |
| 1998.03.02.12 | J. Lawrence Cook in Billings' Rollography, from Bob Billings |
| 1998.03.01.09 | J. Lawrence Cook, from Matthew Caulfield |
| 1998.02.21.04 | J. Lawrence Cook Arrangements, from Andy Taylor |
| 1998.02.20.19 | J. Lawrence "Piano Roll" Cook, from Ken Vinen |
| 1998.02.20.18 | J. Lawrence Cook at Imperial Industrial, from Bruce Clark |
| 1998.02.20.17 | J. Lawrence Cook at the Keyboard, from George Bogatko |
| 1998.02.20.16 | J. Lawrence Cook Arranged at the Piano, from Rick Inzero |
| 1998.02.15.04 | J. Lawrence Cook 78 rpm Record, from John Phillips |
| 1998.02.14.04 | J. Lawrence Cook Records, from Gordon Forcier |
| 1998.02.13.09 | J. Lawrence Cook Remembrance, from Larry Lobel |
| 1998.02.12.12 | J. Lawrence Cook Phono Records, from Bob Billings |
| 1998.02.12.10 | J. Lawrence Cook Phono Records, from Ken Vinen |
| 1998.02.11.05 | J. Lawrence Cook 78 Record, from Rob DeLand |
| 1997.12.31.13 | J. Chein Toy Player Piano, from Debbie Legg |
| 1997.12.30.07 | J. Chein Player Piano, from Jane Turpin |
| 1997.12.16.07 | J. Lawrence Cook, Piano Roll Artist, from Jan Kijlstra |
| 1997.02.14.02 | J. C. Deagan Carillon, from Marc Kaufman |
| 1997.02.13.06 | J. C. Deagan Carillon, from Matthew Caulfield |
| 1997.02.12.02 | J. C. Deagan Carillon, from Terry Arthur |
| 1996.08.26.04 | Artist Pseudonyms: J. Lawrence Cook, from Karl Ellison |
| 1996.03.04.03 | Re: Thomas J. Watson (Sr.), from Bob Conant |
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