rhyth·mic 
(rĭthmĭk) also rhyth·mi·cal (-mĭ-kəl)
(rĭthmĭk) also rhyth·mi·cal (-mĭ-kəl)adj.
Of, relating to, or having rhythm; recurring with measured regularity.
rhythmi·cal·ly adv.
- William Clarke
- William Claude Dukenfield.
- William Cook.
- William Crawford
- William Cullen
- William Dean
- W(illiam) D(onald)
- William Dudley
- William Dwight
- William Edward
- W(illiam) E(dward) B(urghardt)
- William Ellery
- William Ewart
- William Felton
- William Ford
- William Frank, Jr.
- William Franklin
- William Frederick
- William Frederick
- William George
- William Gerald
- William H.
- William Harold
- William Harrison
- William Harrison