Hi, I'm searching the Thursby's. Namely the line of Augustus and Agnes (McRea)They were my great grandparents. They had a son William ( my grandfather and he married Helen(Ella) McRobbie. The Lorimers are related too, but I don't know how.I don't know what other children Augustus and Agnes had except that on my grandfathers birth certificate it states that he is a twin. I have no idea what happened to the twin.