1898, The Hotel/Motor Hotel Monthly, Vol. 6, p. 27:
A gents' toilet room might be found in a house that caters for the cheaper class of theatrical patronage, where the slangy language of the "goin' to the mat this aft?" style prevails. A gents toilet room is not found in the Southern Hotel. It either "men's" or "gentlemen's".
One unidentified man spoke of how he was approached to "go to the gents Gents" with an MP at an event for young political activists while another man described how an MP invited his entire office staff to a gay bar.