Ingredients Unknown
Corvallis, Oregon
1966 - 1970


Mike Day ~ Guitar, Bass, Vocals
Neil Grandstaff ~ Guitar
Michael Hartman ~ Hammond Organ
Gary Janssen ~ Bass
Gary Sinhuber ~ Drums

In Memory of

Gary Janssen

The top photo is of Ingredients Unknown from the program of the national Battle of the Bands, held in Raleigh, NC, in 1969.

Vance Pollock, July 2013

Michael, Neil, Mike  and Gary

Michael Hartman, Neil Grandstaff, Mike Day and Gary Sinhuber
Back together for their 40th High School Reunion on Aug. 21 and 23, 2010
My name is Michael Hartman and I played the Hammond organ for the band from it's inception in 1966 to breaking up late in 1970.  Gary Janssen  was the bass player until his untimely and sad passing in 1969 and then rhythm guitar player and lead singer Mike Day took over that role.

Gary Sinhuber is in Alaska at this time and the remaining three members, including myself, live in Oregon, all within 20 miles of each other.

Michael Hartman, April 2005

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Last Update:  1 July 2013
Credits: Michael S. Roth, Michael Hartman Cordell Hull, Vance Pollock
Band # 1598