Portrait Of Elizabeth Legge - John Downman
Portrait of Elizabeth Hervey, Countess of Bristol (D.1741), half-length, in a white dress and blue wrap, resting her arm on a plinth - (after) Dahl, Michael
Portraits Of A Gentleman And His Wife, Both Half-Length, He Wearing Brown And Holding A Musket With His Hound Beside Him, She Wearing A Gold Dress - (after) Jan De Baen
Portrait of Lady Charlotte Boyle - George Knapton
Rachel Spears Johnston - George Caleb Bingham
Portrait of a lady, half-length, in a pink dress and orange wrap - (after) Romney, George
Portrait of Henrietta Erskine, bust-length, in a red dress with flowers in her hair, in a feigned oval - (after) Kneller, Sir Godfrey
Portrait of a Lady 2 - Cornelius Janssens van Ceulen
Portrait of Tsarina Alexandra Feodorovna of Russia - George Dawe
Portrait Of A Girl Wearing A Pearl Necklace - Francesco Paolo Michetti
Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the 
