Hi Douglas, reading between the lines as there isn't much else
I'm thinking there was no marriage, since nothing can be found. Also the death details for Joseph Knight going by your date are scarce to say the least. Have printed the only one I have found, no mention of Annie though! Only Margaret!
Also found death info for an Annie Barry 1977 does that tie in with your wife's recollection? Have nothing else to offer I'm afraid unless more details are forthcoming....Will though look at the Tan thread see if you can be helped there.
Any questions on the info below just ask.
From FMP:
First name(s) Joseph
Last name Knight
Death year 1937
Death date 13 Feb 1937
Probate year 1937
Probate date 15 May 1937
Residence town Birkenhead
Registry Liverpool
County Cheshire
Linked persons
MARGARET WALKER
Country England
Possibility too Doug that Joseph may have joined a ship?
From Ancestry:
Name: Anne Barry
Death Age: 76
Birth Date: abt 1903
Death Date: 1979
Burial Date: 8 Jun 1979
Burial Place: Ford Cemetery, Liverpool, Lancashire, England
This Annie Barry, appears to have died in Walton Hospital, as it given as her address. Grave/Lair No EX 683