Many accurate 1921 census transcriptions have already been added to the pub history site, including London, and parts of Middlesex.
Newington pub history index
Listed as the Prince Ernest in 1944, this is probably a directory error.
Residents at this address.
1869/Mrs Mercy Hills/../../../Post Office Directory
1881/Mercy Hills/Licensed Victualler, Widow/66/Herne Bay, Kent/Census
1881/Jane Dover/Visitor, Annuitant, Widow/62/Westminster, Middlesex/Census
1881/Mary Mepling/Domestic Servant/63/Bethnal Green, Middlesex/Census
1881/Ellen Adams/Domestic Servant/19/Newington, Surrey/Census
1881/James Crisp/Barman/27/Lynn, Norfolk/Census
1882/Mrs Mercy Hills/../../../Post Office Directory
1884/Mercy Hills/../../../Post Office Directory
1899/James farnham Flower/../../../Post Office Directory
1910/Thomas Frank Longhurst/../../../Post Office Directory
1911/Thomas Frank Longhurst/Licensed Victualler/25/Burham near Rochester,
Kent/Census
1911/Christina Elizabeth Longhurst/Wife/25/Queenborough/Census
1911/Cyril Frank Longhurst/Son/3/123 Lorrimore Road SE/Census
1911/Angelina Ballard/Cook/36/Wadhurst, Kent/Census
1911/Richard Percy Eales/Barman/25/Essex/Census
1911/George Walter Bott/Barman/28/Lambeth/Census
1911/Arthur Mills/Barman//29/Lambeth/Census
1921/T F Longhurst/../../../Post Office Directory
1938/Thos Frank Longhurst/../../../Post Office Directory
1944/Thos Frank Longhurst/../../../Post Office Directory
1971/E A Dover/../../../Pub Directory