This photo of Gardner and Maria Dunn Curtis was provided to me by Shauna Hart.
Update: This picture has been printed in a Thornton Family Book as Gardner and Maria, and a cropped picture of the woman has been printed in the Daughters of the Utah Pioneers Volume as Maria Dunn Curtis, family members in Salt Lake who are related through Gardner’s son, Uriah Eugene and his wife, Sarah Mendenhall, have pictures of him hanging on their wall, say this picture is Uriah Eugene and his wife, Sarah, not Gardner and Maria. I have a number of pictures of Uriah Eugene and Sarah and agree with them. I would be surprised if a picture of Gardner and Maria exists. I have never seen one in all the gathering and searching I have done.