These are nice! The University oof York’s Borthwick Institute has produced these schools packs using material in their extensive archives. There are materials that can be passed on to English and Art colleagues too.
Of most interest to History teachers will be the pack on the Transatlantic Slave Trade, its links to Harewood House and the abolition debate. Local York teachers will find the Heslington Hall materials useful to flavour KS3 topics with local history.
@YorkClio and @Snelsonh had a fascinating day with the Bootham and Retreat Hospital archives – the results of that will be out soon – and you can find the Retreat archives online here too.