Anyone with any interest in wildlife will be familiar with John James Audubon. The naturalist and artist born in 1785 is known in particular for his drawings and paintings of North American birds. Much less known is Maria Martin - the principal painter of botanicals in the Audubon. Debra Lindsay is hoping to change that. She's the author of the book Maria Martin's World: Art & Science, Faith & Family in Audubon's America.