Hi,
I'm looking for pointers which will certainly be helpful in many cases, not just this:
I'm stuck on an ancestor:
Moninna Helen Southerwood nee Negus
Dressmaker • Born 1862, Paddington, Middlesex, England • Died 1931, Chelsea, London, England
I can't find her birth cert index (neither in FindMyPast or Ancestry). Plenty of census references.
Her first names vary a lot, including
Womoninna H
Helen
MONIMIA H
Monimia Helen
I've tried wildcardd and variants, +/- 2 years on the date, even searched for every Negus and Southerwood born around that date in London (London is a fairly certain factoid).
No trace... Is it possible that:
1) The BMD entry and/or baptism is simply missing;
2) She was adopted - and how would I research that?
3) Some other reason?
It's not a mega important branch of the tree - but I expect to run into this problem from time to time. Any tips for a beginner welcome, even a link to a good webpage or youtube vid

Many thanks indeed
