Welcome to the forum @Mrs funkyg. I don't know how well you know Bedlington but Kidds House was at the western end of the front street on the north side of the road. It's not possible to say exactly which house it was but I can narrow it down to three or four buildings for you. The map below is from 1860 but not much changed there for many years. The layout was pretty much the same in 1920. However, it's a map that's much clearer than any other that I have. I can say with certainty that Kidds house was located within the blue square and with a fair degree of certainty that it was one of the buildings facing the front street which I've underlined in green.
In 1921, the first house, on the corner of Front Street West and Glebe Road belonged to a grocer and provision merchant called Robert Beadnell. The Beadnell family owned that building and shop until at least 1965 (I used to shop there). Next door but one to Robert Beadnell was a 42 year old widower, Llewelyn Kidd, who was a general dealer. Both were self employed and running their own business and living above the shop. Llewellyn owned property there, hence the name Kidds House. He also owned property in Kidds Yard which was located directly behind the buildings facing Front Street. I've marked the entrance to Kidds Yard with a red spot.