Tuning-maintenance - Holy Apostles Episcopal, Hilo
Tuning-maintenance - St. James Episcopal, Kamuela
Rebuilding-tuning - 1st United Protestant Church, Hilo
Restoration - Higashi Hongwanji Temple, Hilo
Revoicing and tuning - Kawaiaha'o Church, Honolulu
Restoration of pipe organ, St. Stephen's Episcopal, Wahiawa
Tuning-maintenance - Harris United Methodist Church, Honolulu
Tuning-maintenance - Central Union Church, Honolulu
Trustee - Keawala'i Church, Makena, Maui
Tuning-maintenance-additions Makawao Union Church, Maui
Curator of organs - Sanfilippo Estate, Barrington, Illinois
Owner of International Organ Supply, Illinois
Sales/marketing - Peterson Electro-Musical, Illinois
President - American Institute of Organbuilders
Owner of GRUBER PIPE ORGANS - Builder/curator of over 350
pipe organs in churches, theatres and schools throughout Illinois,
Indiana & Wisconsin.

2017-present
2017-present
2017-present
2017
2017
2015
2015-present
2015-present
2011-present
2011-present
1992-present
1997-2009
1992-1997
1988-1992
1974-2009