1882 Edna Lyall: ''Donovan'':
- Gladys was the eldest daughter of the house, and when her parents had chosen her name – a name which they considered emblematic of happiness, in spite of certain questionings that had arisen among the name fanciers on the subject – it would seem that some unseen fairy godmother had really bestowed that best of all gifts on their child, for Gladys was the happiest, most contented, sunshiny little person imaginable.
(RQ:Fitzgerald Beautiful and Damned)
1993 May 16, of Jeeves and Wooster episodes|"Return to New York" Jeeves and Wooster|''Jeeves and Wooster'', Series 3, Episode 6:
- ''R. Jeeves:'' In my experience, ladies who spell Gladys with a W are seldom noted for their reliability, sir. It gives them romantic notions.''Wooster|B.W. Wooster:'' With a W, Jeeves? No, no, no, no. You spell it with a G.''R. Jeeves:'' If I might draw your attention to the signature on the portrait, sir.''Wooster|B.W. Wooster:'' Good Lord! G-W?''R. Jeeves:'' I blame Lord Tennyson|Alfred Lord Tennyson and his ''of the King|Idylls of the King''. It also accounts for Kathryn, Ysabel, and Ethyl, all spelt with a Y, but Gwladys is a particularly virulent form, sir.