my gt gran was Jane McArthur Shaw, My granny and her sister always told us it was a family tradition to bestow a family surname as a middle name.
My granny was Margaret Milne Jolliffe.
Janes Mum was Helen Brown Smillie.
It seems to have to have passed 2 generations until now,my children have been chatting about it,but so so far only 1 grandchild has been given our family name of Reilly as a christian name,not a midddle name.
Isabella
