Jack quit the band before the band quit EMI. Jack did vocals, accoustic & electric guitars. He didn't get a vocal credit for don't cry too hard, but that was an oversight. Pat says that Jack was always the reluctant one in the Treeo. He felt that they should be concentrating on their theatre careers, not getting distracted by being a band. Eventually, he did leave, to pursue his acting career.

He has performed in the following plays:Steel Kiss, Urban Donnelys, Civilization of a Shoeshine Boy and Book of Rejection.
He has performed in the following movies: The Last Supper, Perfectly Normal and I Love a Man in Uniform.
He's still a friend of Pat and Laura, and he sings with them occasionally. For a while, he was been running the mixer at the open stage, and he was really good at that. Even though he's no longer part of the Leslie Spit Treeo, he's been on all of their albums so far. He still sings and plays guitar, now with the Cameron Family Singers.