5. Charles Darwin, 1809-1882
The naturalist and father of evolutionary theory had 10 children with his wife, Emma Wedgwood. He doted on his children, and was devastated by the death of 10-year-old daughter Annie in 1851. His other children remembered him as a loving storyteller who took interest in their lives and encouraged their freedom.
"Indeed, it is impossible adequately to describe how delightful a relation his was to his family, whether as children or in their later life," Darwin's daughter Francis wrote in "Autobiography of Charles Darwin and Selected Letters" (Dover Publications, 1992).