The Power of the Dog

Little, Brown (Boston, with Toronto on the imprint) 1967 is the true first, and the census is confirmed. No contemporaneous British edition was documented in the sources consulted, so no UK-vs-US precedence question arises and the US first stands alone as the collected edition. The novel was well reviewed but sold modestly in 1967, and interest rose sharply after the 2021 film, which has pushed a large volume of later printings and reissues into the market described with "first edition" wording — a reason to check the copyright page rather than the year on the title page.