Was this the first time a Queen Consort was present at the Accession Council? Or were Queens Mary and Alexandra also members of the Privy Council and those present?
And was Prince Philip present in 1952?
Philip and the Duke of Gloucester were both present as members of the Privy Council.
George VI appointed Philip in 1951.
George V appointed the Duke of Gloucester in 1935.
This is the relevant entry in the CC for the 8th February 1952:
8th
COURT CIRCULAR
Clarence House
The Queen-held Her first Privy Council at 10 o'clock this morning at St. James's Palace.
The Duke of Gloucester and The Duke of Edinburgh were present.
Previously the Lords of the Council, of whom one hundred and fifty were present, Representatives of other Members of the Commonwealth, the Lord Mayor, Aldermen and Officials of the City of London, who attended in their Robes of Office, and other Noblemen and Gentlemen who were also present, approved a Proclamation proclaiming Her Majesty as Queen Elizabeth the Second.
The Proclamation was signed by the Lord Chancellor, the Prime Minister, a large number of other Privy Counsellors, Representatives of the Commonwealth and by the Lord Mayor and other representatives of the City.
At the Council Her Majesty made a Declaration, which was ordered to be published, and The Queen subsequently took and subscribed the Oath for the Security of the Church of Scotland.
Mr. Francis Femau (Clerk of the Council) and Mr. W. G. Agnew (Deputy' Clerk of the Council) were in attendance.