- Category : 1948-births
- Type : PM
- Profile : 6/3 - Role Model / Martyr
- Definition : Single
- Incarnation Cross : LAX Education 1
American author of nearly 20 books and over 100 short stories published in Esquire, The New Yorker, Playboy, and many other magazines and anthologies.
From 2001 to 2007, Williamson was the lead singer and guitarist for the Irish duo Fire in the Glen, in which he was partnered with fiddler and bodhranist Tom Knapp. A lifelong member of the Actors' Equity Association, Williamson has performed in plays and musicals.