« Reply #20 on: Tuesday 01 June 21 15:25 BST (UK) »
Someone in Dennington, Suffolk was enumerated in 1851, but a remark on the census page was "died April 2nd". So the papers were collected a couple or so days after 31 March.
In 1871 though, my ancestors neighbours in St Pancras, London gave very vague info on the census, just initials for first names and "England" for birthplaces.
Researching:
LONDON, Coombs, Roberts, Auber, Helsdon, Fradine, Morin, Goodacre
DORSET Coombs, Munday
NORFOLK Helsdon, Riches, Harbord, Budery
KENT Roberts, Goodacre
SUSSEX Walder, Boniface, Dinnage, Standen, Lee, Botten, Wickham, Jupp
SUFFOLK Titshall, Frost, Fairweather, Mayhew, Archer, Eade, Scarfe
DURHAM Stewart, Musgrave, Wilson, Forster
SCOTLAND Stewart in Selkirk
USA Musgrave, Saix
ESSEX Cornwell, Stock, Quilter, Lawrence, Whale, Clift
OXON Edgington, Smith, Inkpen, Snell, Batten, Brain