James Magor & Mary Elizabeth Smith

James Magor and Mary Elizabeth Smith.
James and Mary had eight children, Mary and twin daughters, Florence Catherine and Ethel May, aged 19 and 21 were buried at Payneham, Adelaide, South Australia. The lease is about to expire on the grave.
Can anyone tell me which family of Magors James descends from? A son Ernest Howard married Amelia Balfort, 1910.
Joan