Hi George
Your Charles, father of Charles, looks to have been born in Mull. From the 1861 census - all the children born in Glasgow:
Charles McGilvery 38, labourer, b. Mull, Argyll
Janet McGilvery 37, b. Islay, Argyll
Duncan McGilvery 17
Charles McGilvery 8
Janne McGilvery 6
Angus McGilvery 4
Cill McFatlyn 55, boarder b. Islay
Donald Smith 36, boarder b. Islay
Isabella Smith 35, , boarder b. Islay
Address: 122 Garscube Rd, Glasgow Milton
Monica
