Monte Walsh

Houghton Mifflin (Boston) 1963 is the true first worldwide and the only edition seriously collected; the census is confirmed on publisher, city and year. The census's UK claim — André Deutsch, 1965 — could NOT be confirmed and should be treated as an error: no such edition surfaced in any source consulted. The earliest UK issue documented is a Corgi (Transworld, London) paperback of 1966; André Deutsch did publish Schaefer's Mavericks in London in 1968, which is the likely source of the confusion. No UK edition competes with the US first on precedence in any event.