Cecil John Alvin Evelyn, or simply “Jack” to friends, was born in 1904 in the United Kingdom in the aristocratic Evelyn family. A true “gentleman of leisure”, he had hobbies rather than jobs.
Among those hobbies was a genuine passion for elementary geometry. Jack and some friends, also gentlemen of leisure, often spent time in a cafe hand-plotting various lines and circles on large sheets of paper in pursuit of new configuration theorems.
These plots, which today might be routine manipulations with modern geometry software, back then were acts of scientific inquiry. One result of these meetings was a self-published book “The Seven Circles Theorem and other new theorems”, [EMCT]. (He also co-authored several papers in number theory; see the bibliography in [Tyr].)
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