George Charles Williamson,
1911 Encyclopædia Britannica, Volume 13…
(1911)
“ Some contemporary inscriptions on the miniatures at Ham House record them as the work of “Old Hoskins,” but the fact of the existence of a younger artist of the same name is settled by a miniature in the Pierpont Morgan collection, signed by Hoskins, and bearing an authentic engraved inscription on its contemporary frame to the effect that it represents the duke of Berwick at the age of twenty-nine in 1700. ”
