I have lived in the same house for over 90 years, and in 2006 I was persuaded to become a guide at the Croydon Airport Museum, which is about 10 miles due south of London. It was not long before my colleagues noticed that I could talk about many occasions dating back to the mid 1920s without having to refer to any notes, and when we discussed this my explanation was that I had actually experienced most of the events that I described and could remember them in great detail. They then said I should write them down for the benefit of those who would follow. That is how the seed was sown for me to write about a lifetime of my impressions.