I just heard that the iconic telescope maker & optician Jean Texereau passed away a month ago today in France, at the age of 95. His knowledge and contributions to telescope optics were second to none. His book "How to Make a Telescope", not only helped me start in mirror making, but was truly the "Bible" of ATM for countless of amateurs who wanted the pleasure and satisfaction of making a telescope mirror "beyond reproach", with their own hands, using the simplest of tools.
A weird coincidence, his passing was just weeks after John Dobson, but not as well publicised here in the states. He was purely French and lived his life entirely in that country. We just lost 2 iconic figures in pro-am astronomy and instrumentation, one after the other :(