EXETER HALL —Mr. Reginald Radcliffe and Richard Weaver returned on Saturday and recommenced their labours on Sunday night at Exeter Hall. Before the doors were opened( at six for half-past) the throng waiting for admittance at the entrance in the Strand relieved their impatience by singing—an unusual circumstance in one of the busiest thoroughfares of London. The Hall was densely crowded in a few minutes after the doors were opened.
From the 'Revival Newspaper', Volume III, page 180.
Although it does not mention a revival, the Hall was often used for such meetings and any meeting led by Radcliffe and Weaver during those revival times would have been powerful.