In the 1920s a relative lived at 105 Shevington Vale. There does not appear to be any road or lane in the area now with that title. Does anyone know if Miles Lane was originally known as Shevington Vale, or if not where the road known as Shevington Vale was situated?

might be Back Lane off Skull House Lane/Miles Lane ?

I don't think there's ever been a road, or a lane, named Shevington Vale. It seems to be an area within Shevington's boundaries.