Michael Johnson researched the material culture, demography and linguistic relationships of Native American people for more than 50 years. A collector of data, photographs and artefacts, he presented many exhibitions, visited some 30 Native American communities and reservations, and authored numerous books and articles.
Jonathan Smith obtained a degree in fine art from Goldsmith's College of Art, and his work has been exhibited in many galleries. He has had a lifelong interest in tribal peoples, particularly Native Americans and has travelled extensively in the USA and Canada with peoples of many tribal nations.