Adam Sedgewick (1785-1873), British geologist, one of the founders of modern geology, at the age of 47
<a href="https://en.wikipedia.org/wiki/Thomas_Phillips" class="extiw" title="en:Thomas Phillips">Thomas Phillips, R.A., 1770 - 1845</a>
before 1890 <div style="display: none;">date QS:P,+1890-00-00T00:00:00Z/7,P1326,+1890-00-00T00:00:00Z/9</div>. Original painting ist dated 1832 (see: J.W. Clark and T.M. Hughes, The Life and Letters of the Reverend Adam Sedgwick, Cambridge University Press, 1890, vol. 1, replica of Frontispiece)
transferred from german wikipedia. Original description of source was <a rel="nofollow" class="external text" href="http://www.amphilsoc.org/library/mole/s/sedgwick.htm">Adam Sedgwick Collection</a> (Link ist dead, see <a rel="nofollow" class="external text" href="http://cdm.amphilsoc.org/cdm4/item_viewer.php?CISOROOT=/portraits&amp;CISOPTR=91&amp;CISOBOX=1&amp;REC=2">New Location</a>)