Sincere thanks to Sinann and Aghadowey for providing the breakthrough that I needed. The marriage cert show that my Great-grandmother was indeed Taggart, but from Ballyoglagh, not Loughguile as my Mother had always believed.
The whole name change scenario became more interesting when I received this info, and delved deeper. My Great-grandfather, known as William McFadden, was married as William McCaldridge, but his birth reg found just tonight shows him as William Alexander born 15/11/74 to William Alexander and spouse Mary Ann McFadden at Knockannbery (Knockanavery?). He had three surnames in a lifetime, finally adopting his Mother's maiden name! I feel we have skeletons in our closet.
Thanks for research into his children's registrations, and I confirm that George whilst noted as a different age on 1911 census appears to have been born in 1901 - unfortunately I have not yet found any of his family.
I sadly conclude that my Grandmother Minnie and her older sister Jane/Jeannie were not registered at birth - Grandma was born in 1896, her parents marriage in December of that year render her illegitimate as was Jane. I think they were never registered and I have a copy of Bushvale register of their joint adult baptism. However sites provided last night on RootsChat have allowed me to have a copy of my Grandparents marriage cert Bushvale 15 Nov 1918 Minnie McFadden to John Gordon.
