National Geographic : 1942 Aug
British Combine Derelict Land, Untouched for 20 Years, Produces a Sea of Wheat on the Sussex Downs Land Army girls, of whom there are 20,000 in Britain, drive self-binders across the 400-acre field to harvest the bumper crop. Everybody helps onthefarms. A hundred thousand tractors have been mobilized for farm work, compared with 5,000 during the last war. Theyare "manned" nonstop, inshifts (page 158).