The book "Wagon Ruts West", written by the late Ralph Keeney in 1984, has a couple photos of Elias. I don't see one for his twin Eli but there are photos for his brothers, Jonathan and James, sister Rebecca and their mother Mary who were in the 1851 wagon train. Unfortunately the photos do not show up well in the copy I have. I am a descendant of Andrew Jackson Keeney who also has photos in the book. Andrew Jackson's first wife was Elizabeth Mulholland who died while crossing the Missouri River with their infant daughter who also died. I think that Elizabeth's mother is the Martha Keeney Mulholland you mention. I am sending you what photos I can scan but I also would be very interested if someone has clearer photos.