Also...re: Hugh Cowan.. Yup interesting. Especially since his illegimate birth is recorded as Hugh Kerr and his mum is an Isabella Kerr. The place of birth is that same Matthewsfolly address so she's gotta be Mary's sister I presume.
Also interesting that father William is not at home in 1861 but he doesn't die until much later. There is one 1861 entry that had me wondering....but also the occupation of father William has me wondering. I've seen him called an Ostler...I think that was on his DC but am typing from memory and that is always dangerous.
I wonder if the Kerr/Brown couple in Old Monkland might link back to the Brown/Kerr couple........
Wow.....this one is really doing my heid in....
Best wishes
Jean