Anniversary births/meeting work colleague

My brother, my parent's 3rd child, was born on their wedding anniversary(9th); my third child, a girl, was born on my wedding anniversary (10th). A friend and I enjoy visiting National Trust properties, but often end up running round as we arrive late in the day en route from another visit. This time we managed a look round the outside and a cup of tea under the trees of the cafe. As we gratefully drank the tea, a voice asked my friend if he had been in Africa during the fifties; my friend had worked in Africa for most of his life and had indeed been there during the fifties. The gentleman posing the question had been working in the same area as my friend and they had played football together, but had not seen, nor I suspect thought about each other since those days.