Portrait of Talvj (pseudonym of Terese Albertine Luise Robinson d. 1870), photograph provided to biographer by grandson Edward Robinson By Unknown 19th century(?) artist; published in Voigt (1913) - Voigt, Irma Elizabeth (1913) The Life and Works of Therese Robinson (Talvj)[1], University of Illinois, Public Domain, https://commons.wikimedia.org/w/index.php?curid=30301748