1844 – Born in upstate New York on the 18th of September.
1903 – Coolidge contracted with the advertising firm of Brown & Bigelow of St. Paul, Minnesota, to create sixteen oil paintings of dogs in various human poses.
1910 – Coolidge painted "Looks Like Four of a Kind" in the same style as his earlier "Dogs Playing Poker" series.
– His paintings inspired American illustrator Arthur Sarnoff who is famous for his Dogs Playing Pool style paintings, and hundreds of other imitators.
1934 – Died on the 13th of January.
2005 – Nine of them depict dogs playing poker. On the 15th of February, two of these much imitated paintings, A Bold Bluff and Waterloo, went on the auction block expecting to fetch between $30,000 and $50,000 but surprisingly sold for $590,400.