I have a pageset giving all 600+ (?) the 19th C or earlier Balla
see http://www.ee.surrey.ac.uk/Contrib/manx/gazateer/balla10.htm for Ballaquayle)
the name (quayle's farm occured in 4 parishes German, Malew Onchan and Patrick)
The Onchan one was in what is now almost central Douglas (The B'quayle stream fell through Falcon's Cliff)