was an artist and peace activist, primarily noted for his part in the Baltimore Four and the Catonsville Nine. Lewis was active in the Civil Rights Movement as a member of CORE and had close ties to the Catholic Worker Movement. He was a member of the Prince of Peace Plowshares, and was arrested many times over the years for his antiwar activism.

Lewis was a well-known artist throughout the Worcester area, and many of his pieces still survive in galleries and archives throughout the USA. He was an art teacher at Anna Maria College, and he taught printmaking at the Cambridge School of Weston, and Worcester Art Museum.

Lewis was a memorable figure in the “radical Catholic” movement for his fusion of art and activism. Daniel Berrigan described his art as “A poignant and powerful witness to the survival of the endangered conscience…. He heals the ancient split between ethics and imagination.”