Correspondents include: representatives of George G Harrap and Company including Walter Harrap (7); David Minlore (2) and Charles Adams, [Assistant Keeper] of the National Portrait Gallery, on a portrait of John, 1st Duke of Marlborough; A Merens, a Consul-General of the Netherlands in India, on an ancestor of his who fought alongside Marlborough; Lovat Dickson, [Director] of MacMillan and Company (3).Also includes copy letters from officials of WSC's Private Office including John Martin [Prime Minister's Principal Private Secretary] to those mentioned above and others.Other subjects include: corrections to the text of "Marlborough"; foreign rights for the book; its re-issue by Harrap's.Also includes: a photograph of Minlore's portrait.