Born in Rhode Island to Joseph and Hildegard Slocum, his family moved to New Braunfels, Texas, when he was eight months old, and opened a book store. In 1991, while a senior at New Braunfels High School, Slocum played guitar with Chris Taylor on a garage-band tape release called
A Place to Hide Away (Part 1). He was a member of
Love Coma, a Christian rock band, and in the early 1990s he met vocalist
Leigh Bingham Nash while attending the same church in
New Braunfels, Texas. Slocum and Leigh formed Sixpence None the Richer; he and Nash are the band's only constant members. He co-wrote, with Nash, the song "Nervous In the Light of Dawn" for Nash's debut solo album
Blue on Blue. In 2006, Slocum toured with the band
The Choir, playing bass. He has also played guitar with
Over the Rhine, and played bass in the band the Astronaut Pushers. Slocum played cello on
Viva Voce's first album,
Hooray for Now. As studio guitarist and cellist, he has recorded on albums by artists
Julie Miller,
Plumb,
Wes King,
Switchfoot,
Hammock,
Lost Dogs,
The Choir,
Dividing the Plunder, Threefold, and
Brooke Waggoner. He also appeared as cellist on the
Chris Rice DVD Inside Out. In 2023, Slocum and Nash joined
10,000 Maniacs; they returned to Sixpence None the Richer the following year. == Discography ==