Hack, just to update you (and anyone else interested) Orpington Library passed my enquiry on to Bromley library who have replied as follows:
Quote Dear Stephanie,
Thank you for your enquiry. You mention two different institutions.
St. Joseph's Roman Catholic Orphanage for Boys was in Sevenoaks Road, Orpington. We have a photograph of the front, a couple of aerial shots and some interior pictures. Records would be held by the Southwark Catholic Children's Society, 49 Russell Hill Road, Purley, Surrey, CR8 2XB, tel. 020 8668 2181.
The Newport Market Army Band's School was in Darrick Wood House, Lovibonds Avenue, Crofton, Orpington. We have some material about it in our archive collections, including news reports and photographs of the buildings and the pupils, a few of whom are named. The school was there from 1927 to 1938, having moved (as far as I can gather) from Greeencoat Place Westminster, and sometime having been at Coburg Row, Westminster. After Orpington, it moved to Fortescue House School at Twickenham. It was originally named after the slums of Soho known as Newport Market, and provided refuge for destitute lads living in that area.
unquoteThat puts my ancestors firmly back in Westminster in 1921! And adds a visit to Bromley to the list
Steph..