|Hollymeade in Wilmslow, the house where Turing died|
“For those who knew him here [at Sherborne] the memory is of an even-tempered, lovable character with an impish sense of humour and a modesty proof against all achievement. You would not take him for a Wrangler, the youngest Fellow of King’s and the youngest F.R.S. [Fellow of the Royal Society], or as a Marathon runner, or that behind a negligé appearance he was intensely practical. Rather you recollected him as one who buttered his porridge, brewed scientific concoctions in his study, suspended a weighted string from the staircase wall and set it swinging before Chapel to demonstrate the rotation of the Earth by its change of direction by noon, produced proofs of the postulates of Euclid, or brought bottles of imprisoned flies to study their “decadence” by inbreeding. On holidays in Cornwall or Sark he was a lively companion even to the extent of mixed bathing at midnight. During the war he was engaged in breaking down enemy codes, and had under him a regiment of girls, supervised to his amusement by a dragon of a female. His work was hush-hush, not to be divulged even to his mother. For it he was awarded the O.B.E. He also adopted a young Jewish refugee and saw him through his education. Besides long distance running, his hobbies were gardening and chess; and occasionally realistic water-colour painting.
In all his preoccupation with logic, mathematics, and science he never lost the common touch; in a short life he accomplished much, and to the roll of great names in the history of his particular studies added his own.” — The Sherbornian, Summer Term 1954
This obituary from his old school does seem slightly at odds with their opinion of him whilst he was actually a student there. His recently published school reports paint a slightly different picture. For example, in mathematics one master comments, "Not very good. He spends a good deal of time apparently in investigations in advanced mathematics to the neglect of his elementary work. A sound ground work is essential in any subject. His work is dirty." You can read his school reports on Alex Bellos' blog.