Possible Clues:

• Sir Peter --, founder of the Wildfowl Trust
• Author Sir Walter
• NPR host __ Simon
• Robert Falcon --, explorer
• Expedition leader that is lacking restraint
• ''Dilbert ''cartoonist Adams
• Figure skating medalist Barbara Ann
• George or Willard
• Creator of "Ivanhoe"
• Jazz poet Gil ___-Heron