RootsChat.Com

It is handy, when such people whose birth reg cannot be found, lived to the 1921 census or 1939 register, at least there are more chances of the month and day being accurate. I have an ancestor's sister also born in Essex in late 1852, and on the 1939 register she says 29 Dec 1852 and she was baptised 30 Jan 1853 but no birth reg has ever been found and I have thought outside the box in searches.

Unfortunately my g-g mother didn't make it to 1939, but her age is all over the place on other sources

1861  - age 7
married 18 Jan 1870 - age 17
1871 - over a year later - still age 17 
1881 - 27
1891 - 36
1901 - 46
1911 - 60, but looking at the image "60" has been written over either 56 or 58 ( my great grandfather could not sign his name on marriage record but my g-g mother signed, so I wonder who actually filled in the census form)
1921 - 65 years and 5 months  (she filled in the form herself as g-g father died in 1914)
death 9 Jan 1924  age 71 (death registered  by boarder / live in employee who was also with her in 1921)

From the odd 5 months mentioned in 1921, I am guessing her birthday may have been in January, but whether she had just had her birthday in the year of her marriage or of her death, or it was still to come is anybody's guess.

Like all ethnicity predictions it seems a bit of a lottery.
On my father's side his paternal line is from Berks / Oxon and his maternal line is split between Sussex and  Jersey (Channel Islands). Ancestry only shows my community inherited from him as Berks / Oxon, no mention of any maternal contribution. I can understand that possibly these two further communities dilute the predictions
But, my mother's line is split between Dorset / Hampshire for her father and Yorkshire for her mother, but the only community that Ancestry shows for her side is Dorset / Hampshire. Again the paternal line only.

I have never  needed my long one for anything , driving licences, emigration , passport applications both ,  Aus and British ones, and  green cards in  Asia. I used my Short one on everything that needed a birth cert.
  The only one exception   that I  ever needed a long cert  was around 15 years ago , when I decided to send off  for  my 1st  Irish passport ( as my  Irish  citizenship  is through my  Irish  born  mother, I  needed my long cert to show my mum's name on it    unlike my British passport and my Aus  passports that didnt need my parents names on the cert).

need a full BC for most things now

https://www.gov.uk/apply-first-adult-passport/what-documents-you-need-to-apply


You were born or adopted in the UK
What documents you need depend on when you were born.

Before 1 January 1983
You’ll need your full birth certificate or adoption certificate.

"On or after 1 January 1983
You’ll need your full birth certificate or adoption certificate and either:

your mother’s or father’s full UK birth certificate, or the Home Office certificate of registration or naturalisation, or a British passport belonging to one of your parents that was valid when you were born, or a British passport number for either parent

evidence of one of your parents’ immigration status in the UK at the time of your birth, for example a foreign passport belonging to one of your parents that was valid when you were born

If you send documents relating to your father, you must also send your parents’ marriage certificate."

Ancestry also has the marriage records of the same  church - St Peters Derby - for the period. I have looked from 14 Feb 1841 (3rd Banns reading) until early march 1841. No sign of marriage so it must have been cancelled. They should both appear as single people on 1841 census.