Who is the son of the person who built the Mosquito warplane?
Hereward de Havilland:  He was the younger brother of Geoffrey de Havilland. Hereward de Havilland:  Actresses Olivia de Havilland and Joan Fontaine are cousins. Hereward de Havilland:  He had a son Peter Adam de Havilland (m. Barabara Bolt) and grandchildren John and Joanna de Havilland.
i don't know