1. Pinnate-leaved European perennial having bright blue or white flowers
   - Jacob's ladder, Greek valerian, charity, Polemonium caeruleum, Polemonium van-bruntiae

Type of: polemonium

• William Claude Dukenfield
• William Congreve
• William Cowper
• William Crawford Gorgas
• William Crookes
• William Curtis
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• William Dawes
• William Dean Howells
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• William Falkner
• William Faulkner
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• William Frederick Cody
• William Fulbright
• William Gilbert
• William Gladstone
• William Golding
• William Graham Sumner
• William Green
• William H. Bonney