Giants, of course, frequently played a great part in the history of Scilly. Buzza’s Hill, just beyond Hugh Town (St. Mary’s), commemorates a giant of the name of Bosow, who made his home on its summit (now crowned by a Spanish windmill), and from whom the family of Bosow were decended.
p40 in
Cornish Folk-Lore
M. A. Courtney
The Folk-Lore Journal, Vol. 5, No. 1. (1887), pp. 14-61.