| Digest Nr | Subject and Author |
|---|
 |
| 2019.09.06.02 | Historical Recordings and Playing Styles, from Dave Krall |
| 2017.01.28.01 | M. Welte & Sons Historical Securities, from Hans-Georg Glasemann |
| 2016.03.18.03 | Historical Label on Ampico Pump Belt, from Karl Petersen |
| 2008.11.09.03 | Preserving Historical Documents, from Craig Smith |
| 2008.09.10.03 | Historical American Engineering Record Collection, from John Bartlett |
| 2008.05.04.01 | Preserving Historical Documents and Artifacts, from Matthew Caulfield |
| 2006.05.15.01 | Preserving Fair Organs in Historical Context, from Adam G. Ramet |
| 2006.05.05.04 | Preserve Fair Organs in Historical Context, from Jonathan Holmes |
| 2006.05.04.05 | Preserve Fair Organs in Historical Context, from Bob Yorburg |
| 2006.05.04.04 | Preserve Fair Organs in Historical Context, from Kevin Kline |
| 2006.05.03.02 | Preserve Fair Organs in Historical Context, from Jonathan Holmes |
| 2005.03.12.02 | Organ Historical Society Holds Aeolian Documents, from Jim Crank |
| 2003.04.10.05 | Source of Historical Documents, from Kevin McElhone |
| 2003.04.10.03 | Historical Documents Dispersed To Collectors, from Bill Mackin |
| 2003.04.10.02 | Historical Documents Dispersed To Collectors, from Lynn Zillmer |
| 2003.04.09.02 | Historical Documents Dispersed To Collectors, from Todd Augsburger |
| 1999.06.13.01 | Automatons At The San Jose Living Historical Museum, from Scott Garcia |
| 1998.06.11.02 | Organ Historical Soc. Convention 21 June in Denver, from Dave Clark |
| 1998.01.07.03 | Old Musically Historical Buildings, from Larry Greenfield |
| 1997.01.03.15 | Historical Lyrics on Rolls, from Michael Concordia |
| 1997.01.02.03 | Historical Lyrics on Rolls, from Craig Brougher |
|
