Your search for "Lemuel Francis Abbott" revealed the following:

Captain William Locker by Lemuel Francis Abbott - Art Print

Admiral Alexander Hood, 1727-1814, 1st Viscount Bridport by Lemuel Francis Abbott - Art Print

Admiral Alexander Hood, 1727-1814, 1st Viscount Bridport (sketch) by Lemuel Francis Abbott - Art Print

Captain John Cooke, 1763-1805 by Lemuel Francis Abbott - Art Print

Rear-Admiral Sir Robert Calder, 1745-1815 by Lemuel Francis Abbott - Art Print

Captain Robert Calder [detail:3] by Lemuel Francis Abbott - Art Print

Captain Robert Calder [detail:2] by Lemuel Francis Abbott - Art Print