The Boyde/Boyd/Boddagh/Boddaughs of Ballaugh that I researched are a different branch to the Glendhoo lot, but in case it helps I have a note that the Isabella Boyde that died aged 80 in 1889 (buried 18890428) lived at Bishopsdemesne (above Bishopscourt, on the border between Ballaugh and Michael parishes).