Laurence, from Liverpool Marriages and Banns on Ancestry, Elizabeth was a widow:

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Ancestry's transcription:

Liverpool, Lancashire, England, Marriages and Banns, 1813-1921
about Robert Kneale
Name: Robert Kneale
Marriage Date: 2 Nov 1819
Parish: Liverpool St Peter
Spouse's Name: Elizabeth Ward

Actual image shows:
Liverpool St Peter
Robert Kneale of the parish of Liverpool, mariner, and Elizabeth Ward of the parish of Liverpool, widow, were married by licence 2nd November 1819.
Both signed their names.
Witnesses: John Hughes and J Foyg or Fogg

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A strong possibility for Elizabeth's first marriage:

Liverpool, Lancashire, England, Marriages and Banns, 1813-1921
about John Ward
Name: John Ward
Marriage Date: 22 Mar 1814
Parish: Liverpool St Nicholas
Spouse's Name: Elizabeth Hughes

Liverpool St Nicholas
John Ward of the parish of Liverpool, mariner, and Elizabeth Hughes of the same parish, spinster and minor were married with the consent of Edward Hugher, the natural lawful father of Elizabeth Hughes, this 22nd day of May 1814.
Both signed. (Elizabeth's signature looks like the one of Elizabeth Ward in 1819)
Witnesses: James Farmer/Farrier ??, Eliza Bridge and Edward Coventry (clerk ?)

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Jean C