canadianbeth
LostCousins Star
Yes they would 'assuming' a different mother.
Almost definitely a different mother, since my grandfather is "unknown" on my Dad's birth registration and my grandmother no longer worked at the same place. If the person who seduced my grandmother had other children at the time or later then they would be half-siblings. I doubt he followed her from place to place, given what I know about her, so my aunts' fathers would not be the same person. In the 1911 census she was working at the House of Mercy, Sisterhood, Clewer, as a laundry maid and one aunt was born two years later.