Harcourt
Wikipedia: https://en.wikipedia.org/wiki/Harcourt_(publisher)
Cult of the Colophon, PW, Aug. 6, 1927, at 384-389 (Harcourt, Brace's colophon is on page 387).
Hiram Haydn, WORDS & FACES (HBJ 1974), https://archive.org/details/wordsfaces00hayd/mode/2up.