From ArborWiki

Joseph Curtin is a contemporary violinmaker and the owner of Joseph Curtin Studios. Established in Ann Arbor, co-founder with Gregg Alf of the legendary Curtin & Alf. He was a 2005 recipient of a MacArthur Fellows Program "genius grant". He has also directed workshops on violin design through the Violin Society of America, a group of builders.

More information:

• Joseph Curtin entry on Wikipedia
• Joseph Curtin Studios