The University of Cambridge Zoological Museum has a rather wonderful box of beetle specimens collected by Charles Darwin when he was at the university. The young Darwin had an inordinate fondness for beetles.
Darwin's beetle collection.
Darwin's son, Sir Frances Darwin, donated his father's beetles to the university. The collection was originally in a cabinet. Unfortunately, in the 1870's, one G. R. Crotch began sorting some or all of the collection into boxes, all but one of which was later lost/misplaced.