Correspondence with and relating to J. C. Hunsaker, W. O. Manning, Mervyn O'Gorman, B. G. Cooper, A. P. Thurston, F. Vivian Thompson, C. R. Fairey, E. Caesar Hawkins on the Association for Promoting Flight, R. M. Clarkson on the elimination of the name de Havilland from British aviation, and from others.