38 councillors' seats were up for election (one third): one seat for each of the 40 wards 77 of 114 Councillors and 38 Aldermen seats needed for a majority
Caused by the death of Alderman William Roberts (Conservative, last elected as an Alderman by the council on 9 November 1913[15] on 17 January 1921, which was reported to the council on 19 January 1921.[16]
In his place, Councillor Charles Henry Rutherford JP (Conservative, Princes Park, last elected 1 November 1920)[17] was elected as an alderman by the council on 2 March 1921.
Caused by the death of Alderman James Heald (Conservative last elected as an alderman by the council on 9 November 1920),[20] in whose place Councillor Max Muspratt (Liberal, Vauxhall, last elected unopposed on 1 November 1914)[21] was elected by the council as an alderman on 6 April 1921.
Caused by the death of Alderman James Willcox Alsop OBE (Conservative, elected as an alderman by the council on 9 November 1914)[25] on 19 May 1921,[26] in whose place Councillor John George Paris (Conservative, Kirkdale, last elected 1 November 1920),[27] Fine Art Dealer of 40 Falkner Square, Liverpool, was elected by the council as an alderman on 27 July 1921.
Caused by the election as an alderman of Councillor Joseph Harrison Jones (Liberal, Granby, elected 1 November 1918) [31] by the council on 9 November 1920
Caused by the resignation of Councillor Acheson Lyle Rupert Rathbone (Liberal, Princes Park, elected 1 November 1911([33] which was reported to the council on 1 December 1920.[32]
Caused by the election by the councillors of Councillor Charles Henry Rutherford JP (Conservative, Princes Park, last elected 1 November 1920)[17]
as an alderman on 2 March 1921,[18][19] following the death of Alderman William Roberts (Conservative, last elected as an Alderman by the councillors on 9 November 1913[15]) on 17 January 1921
Caused by the election by the council as an alderman of Councillor Max Muspratt (Liberal, Vauxhall, last elected unopposed on 1 November 1914)[21] on 6 April 1921, following the death of Alderman James Heald (Conservative last elected as an alderman by the council on 9 November 1920).[20][22][23][24]
No. 24 Kirkdale 8 August 1921
Caused by the election as an alderman by the Council of Councillor John George Paris (Conservative, Kirkdale, last elected 1 November 1920)[27] on 27 July 1921, following the death of Alderman James Willcox Alsop OBE (Conservative, elected as an alderman by the council on 9 November 1914)[25] on 19 May 1921[26]
Caused by the death of Councillor Frank Ambrose Goodwin (Conservative, Castle Street, last elected as a councillor on 1 November 1919)[36] on 14 July 1921[37]