Harrison Gray Otis by Chester Harding, 1833, oil on canvas, from the National Portrait Gallery which has explicitly released this digital image under the CC0 license. (<a rel="nofollow" class="external free" href="https://npg.si.edu/object/npg_NPG.77.30">https://npg.si.edu/object/npg_NPG.77.30</a>)
Chester Harding
1833
National Portrait Gallery