Cassius Marcellus Coolidge, an instantly recognizable commercial painter who has given the world the series of Dogs Playing Poker, was born in 1844, into a family of abolitionist Quaker farmers and was named after one of the most eloquent orators against slavery, nicknamed (with provisional anthropomorphism) “The Lion of White Hall.” Nicknamed “Cash” by friends and kin, he had no official training whatsoever, but was very active, publishing drawings in papers before he was 20.