I think your Scotland person is Roger Stableford.
Hi Scot is your Mother Betty Glendinning? If so I met her when she came to Leicester England many years ago - she was quite amused that I drove a "stick shift" car as most cars were at the time in the UK. We tried to keep in touch but the phone number Betty gave me never connected. The link to you is Dorothy Parker, her mother was Elisabeth Florence my wife's Grandmother related to the Brackenbury line and the Plough Inn Horbling Lincolnshire England UK. JohnUK