The Royal Oak Inn was on the corner of Boundary Street East and Brook Street, as seen here and here as a Wilson's house in 1959 but it closed in 1965 . The reason for this is evident; (Upper) Brook Street is now pretty unrecognisable due to redevelopment and the site of the old Royal Oak Inn was on the left in the below shot, now no more than an access road for the University's Materials Science Centre.
Former location of Royal Oak Inn, Upper Brook Street. (c) googlemaps.
1. The Old Pubs of Hulme and Chorlton-on-Medlock, Bob Potts (1997).