1840s Illinois Man
Could a photograph of Joseph Smith Jr. Exist? I thinks so:
In 1910, Joseph Smith III talked about there being a daguerreotype of his Father, Joseph Smith. scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=5922&context=etd, There are even letters written by him asking a photographer to help him reprint images of his father...
Joseph Smith Junior died June 27, 1844; paper photography had been patented four years, by Henry Fox Talbot, who even had a book printed, with reprints of his own paper photographs titled "The Pencil of Nature", released the same year of 1844. Daguerreotypes were the most popular photographic medium in the United States in the 1840s (more expensive and crisper), however is often assumed to have been the only form in existence, which is totally and completely false. Carte Vista's, like the one below, were not patented until the 1850s, however there is an 1845 photograph of Emma Smith that was reprinted on to a CDV, so it is quite possible that Joseph's image could have made it onto a paper, CDV.
See below and page links above to see why I think that I could have a true photograph of Joseph Smith Jr., found by a collector of old photographs, in 2009, sold to me last year, when I started this website.
Photographs of Joseph Smith's Immediate Family