Hi Alistair.
Well, we definitely have a family connection. Peter MacIntosh (1828-91) was first married to Catherine MacDonald(1828-1870) and they had seven children. After Catherine's death Peter remarried. He and Catherine Stewart (1842-) had three children - John, Catherine and Hector. My husband's grandfather was their son John, who was born in 1876.
There is much we can share and discuss Alistair. However, I think it might be now more appropriate to do so off site. I will try to send you a personal email with a contact address.
Warmest wishes.
Elsie