It's in England. See link, fascinating little bit of English history.
Leonard Cockayne was born in 1855.
Leonard Cockayne died in 1934.
Aston Cockayne died in 1684.
Aston Cockayne was born in 1605.
Elizabeth Cockayne died in 1988.
Elizabeth Cockayne was born in 1894.
David Cockayne was born in 1942.
Ida Cockayne was born in 1368.
William Cockayne died in 1626.
William Cockayne was born in 1561.
David Cockayne died in 2010.
The population of Cockayne Hatley is 75.