(09 Oct 2023, 6:14 pm)Ambassador wrote Once Malborough closed the 724 (along with the 777, 721 and 727)  moved to the old Percy Street lay-by bus stands until GNE took over OK and moved it to Eldon Square. The 777 moved to New Bridge St along with the 721

Newgate Street? 
The 777 never went to Marlborough Crescent. 
Was always Sunderland to Chester and in mid-90's replaced the 26 between Barley Mow and Newcastle (although it shadowed the 721).