[1] He was from an affluent family, and his father left him a trust fund after he died, allowing Chaffee to pursue his art.

[3] His work was part of the 1913 Armory Show, the first American modern art exhibit in New York City, which later travelled to Boston and Chicago.

[2] In the spring of 1928, he and his second wife Ada moved to Provincetown, splitting time also in Owls Head, Maine and winters in Ormond Beach.

[9] Solveiga Rush (1930–2020) was an art historian and Professor Emerita at the University of Cincinnati, she had researched and wrote about Chaffee.

[10] In 1991, Chaffee had a retrospective exhibition at Taft Museum of Art in Cincinnati, Ohio, and Rush wrote the accompaniment book.

[4] On January 4, 1912, he married artist Mary Georgia Holbrook Cole, whom he met in Cape Cod.