The Sir George Cayley's coachman reference article from the English Wikipedia on 24-Apr-2004
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Sir George Cayley's coachman

Helping orphans the way you would do it
Sir George Cayley's coachman was the world's first aeroplane pilot. In late June or early July, 1853, he flew a glider designed and built by his employer for 200 metres across Brompton Dale, near Scarborough in Yorkshire. It is said that his first action after landing safely was to quit his job, telling Sir George Cayley "I was hired to drive, not to fly!"

Nothing more is known about him, not even his name.