I knew it only as Pottery Bank Children's Home although that probably wasn't the proper name. Northumberland County Council could probably check their records for it. I also have a vague recollection there might have been another Home on the High Stanners at Morpeth. Have you tried MorpethLibrary? Or Alec Tweddle's Town Trails for those areas. they are a mine of information. You can buy the revised ones at the Chantry in Morpeth.
Val