(The pictured miniature is engraved on the reverse; "Garrit Van Horne - Married to - Ann Margaret Clarkson - 16 Novr 1784". Attributed to John Ramage (1748-1802), recently sold at auction.)
The following information I retrieved from Heirlooms in Miniatures by Anne Hollingsworth Wharton, Philadelphia, 1902. I include the most charming poem in praise of Wollaston taken from her book, describing the creation of a portrait.
century woman, round face and sloping shoulders,
plump and graceful with waist confined by a lifetime in ‘stays’.)
…An interesting souvenir of Wollaston’s stay in Philadelphia is to be found in The American Magazine for September, 1758, in the form of some verses written by Francis Hopkinson, in which his youthful enthusiasm for the artist and his work found expression in the following lines:
To view the amazing conduct of your hand.
At first unlabour’d sketches lightly trace
The glimmering outlines of a human face;
Then by degrees the liquid life o’erflows
Each rising feature—the rich canvas glows
With heightened charms—the forehead rises fair,
And glossy ringlets twine the nut-brown hair;
The sparkling eyes give meaning to the whole
And seem to speak the dictates of a soul,
The lucid lips in rosy sweetness drest,
The well-turned neck and the luxuriant breast,
The silk that richly flows with graceful air—
All tell the hand of Wollaston was there."
The author does not mention any particular miniatures by John Wollaston. William Dunlap in his History of the Rise and Progress of the Arts of Design in the United States (see 'sources often used') provides only 2 sentences on Wollaston; “A gentleman of this name painted portraits in Philadelphia in 1758, and in Maryland as early as 1759-60. I know nothing more of him, but that Francis Hopkinson published verses in his praise in the American Magazine for September, 1758.” Dunlap did not deign to publish the poem. Typical man!