Two birthday coincidences

One I was six when my mother died. I was brought up by my father, who married again when I was 11. We never talked about my mother very much, I always perceived it as too painful a subject for my father to talk about. Consequently I reached my thirties without ever knowing what day her birthday was. Then I decided to do some finding out of such things. The occasion was a holiday in the UK (I was living abroad by then). We went to Somerset House in London, only to discover that by then the national Record Office had moved to Kew. This was on a Friday, so we had to postpone further investigation until the following Monday. At Kew I was able to obtain a copy of her birth certificate, which revealed that her birthday was January 2nd. And the Friday on which I had started out at Somerset House was Friday, January 2nd 1987. Two My birthday is February 9th. For some reason February is always a popular month for birthdays, at least judging by the number of colleagues at work who have birthdays in February. I live and work in The Netherlands, where birthdays are traditionally celebrated at work by treating one's colleagues to cakes, incidentally making it almost impossible to keep one's age secret! However it was years before I actually found a colleague with a birthday on February 9th - so that we could at least foot the cake bill together. He wasn't born in the same year as I, like most of my colleagues these days he was younger. Anyway, one time, I forget how the subject came up, he mentioned his father's birthday. To my amazement it was the same day as my father's birthday, June 14th.