Thanks for that @Newbedders - I had looked on the old maps around Scotland gate as my granny used to live at Whinney Hill and she was married at St. Pauls Church Choppintong in 1918. As you say no Carr's Buildings anywhere on the old maps - Scotland Gate has Rutter's - Fenwick's - Strong's - Foster's & Pringle's Buildings.
As far as I am aware my grandfather, Martin Hhenderson, only ever worked at the Doctor Pit - but I could be wrong on that. His family were from Bentick, Newcastle so how he met a Choppinton lass I have no idea.
But it's nothing important I was just curious when I noticed Carr's Bldgs next to the first two of their children - Haig Road, Bedlington for the rest.
This postcard, my grannie's sister, also has Carr's Bldgs, Bedlington written on the back.