In 1994, Williamson's work was shown as part of the American contingent at the IV Bienal Internacional de Pintura en Cuenca, Ecuador.
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Other American artists exhibiting at this show were Donald Locke, Whitfield Lovell, Emilio Cruz and Freddy RodrÃguez.
David Williamson | Robin Williamson | Williamson County | Jack Williamson | Alison Williamson | Williamson County, Tennessee | Sonny Boy Williamson II | John Williamson | Brown & Williamson | Fred Williamson | Williamson | Skip Williamson | John Williamson (singer) | Williamson County, Texas | Nicol Williamson | Marianne Williamson | J. C. Williamson | Allen Williamson (Representative) | Allen Williamson Bridge | Allen Williamson | South Williamson, Kentucky | South Williamson | Sonny Boy Williamson | Shaun Williamson | Robert Williamson III | Norris C. Williamson | Kay Williamson | James Williamson (film pioneer) | James Williamson | Harry Williamson |