Richard Mayon-White is a retired epidemiologist who has lived in the Thames Valley for the last 60 years. He has always enjoyed walking and exploring rivers. As a volunteer, he helps to maintain and monitor the Thames Path and lead riverside walks. He is co-author of Exploring the Thames Wilderness; A Guide To The Natural Thames and Discovering London's Canals, both published by Adlard Coles.
Wendy Yorke is an active river explorer, finder of river sources, wild swimmer and nature photographer. She is a professional literary agent, author coach, book manuscript editor, international speaker and leader of author coaching writer retreats in southern France. She is the founder of her international business WRITE.EDIT.PUBLISH and the Aude Writers Group in France. She is also a published author of many magazine articles, as well as being a co-author of Exploring the Thames Wilderness; A Guide To The Natural Thames, published by Adlard Coles in 2013.