Hello Bambino,
I think this is their marriage:
William Edward Etherington to Mary Wright Jeffrey
Lambeth Vol 1d Page 349
June Quarter 1856
On FreeBMD Mary is also transcribed as Mary Albright Jeffrey
1861 - RG9; Piece: 149; Folio: 83; Page: 17
Canal Terrace, Islington, Finsbury
Mary W Etherington, Wife, M, 23, b Norwood Green
William is not listed with her, but she is the first entry on a page. He is not on the previous page either, but she is not listed as the Head. Maybe the Enumerator missed him off?
I'll take a look at the other census and report back!
Kind Regards,
Karen