C. K. Williams (b. 1939) was particularly well-known for his formal innovations, the long-lined poems of clause-rich syntax which became his trademark.
Hugo Williams (b. 1942) is the son of the actor Hugh Williams and the model and actress Margaret Vyner-Williams. His glamorous yet financially precarious family life provides much of the inspiration for his poetry.
William Carlos Williams (1883-1963) famously combined the two careers of doctor and writer, along the way founding a specifically American version of Modernism.