After a period of leave he went to work with Major Kennedy RAF in the Ministry of Munitions. This led Brown to meet Kennedy's daughters, one of whom he later married. After the war Brown sought various appointments that would give him the security to allow him to marry. One of the firms he approached was Vickers, a consequence of which was that he was asked if he would be the navigator for the proposed transatlantic flight, partnering John Alcock, who had already been chosen as pilot.