A peacock, a cockerel, a hen with her chicks, a kestrel - Peter Casteels III
Cherry Blossom at Asakura - Utagawa or Ando Hiroshige
A seated sportsman holding a riffle in a mountainous landscape - Hendrik Breukelaar
A Twilight in the Adirondacks - Sanford Robinson Gifford
Double portrait of a boy and a girl, small full-length, with a greyhound in a wooded landscape - Heroman Van Der Mijn
Portrait of Charles, 1st Marquis Cornwallis (1738-1805), three-quarter-length, in uniform, holding a cane in his left hand, in a landscape - Daniel Gardner
A guardroom interior with men making music and drinking - (after) Anthonie Palamedesz. (Stevaerts, Stevens)
Feast at the House of Simon (detail) 3 - Paolo Veronese (Caliari)
Children Paddling - W. Helferich
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 
