Picton left a portrait of himself in his will (along with several other paintings), but its whereabouts is not known. It emerged in 2007 that the portrait of Picton depicted in a mural of Kingston's history, commissioned by the Council, was actually of either Olaudah Equiano or Ignatius Sancho. He is not known to have married, and all his bequests were to friends, including 16 mourning rings. Although Picton lived through the main period of the British abolitionist movement, no involvement by him is known.