RootsChat.Com

ThoseBefore as others have said the 'other researcher' has no 'further action' they can take... cite your source to show where you got your information from, which is public record if a newspaper report, however even if you do nothing at all, the person is long dead and dead people can't sue and the other researcher has no 'right' (legal or moral ) to bully or threaten you or anyone else about their dead ancestors origins......my advice is ignore and/or block further emails

Funny thing is some people researching their ancestry think they are the only ones who 'own' the information they have and will argue when other reseachers find something they have't seen or don't have that doesn't 'fit' their narrative.... I have experienced simular nasty reactions from a couple of other researchers , both I cut contact with as their reactions were far beyond reasonable or in any way nice, however it can shake you ( it did me at the time)

I have just been looking at FS website and checking some real records/images and if some people think that 'further action' can be taken they are mistaken... I looked at the FS transcribed record of someone I was interested in but it stated the wrong county. So I checked the image to find it was completely different County ( Suffolk not Norfolk) to what was transcribed, different parents, different country, so someone has been slopping transcribing a whole parish record book giving the wrong information in the transcription... which lead me to looking at other information, FS guess countries, guess counties eg 'Rutland Wales' when Rutland is the smallest county in England and nowhere near Wales as well as many others

If you haven't already seen the Stickney history website I add http://www.stickneyhistory.co.uk/home.html
Martin/Bev are very good at providing further/additional information some of which is not on their site

With that date ( 1847) it is more likely any surviving records would be in the records office in Dublin

Harry and Cecila's US naturlisation petition which gives more details, like DoB/PoB/arrival in US in 1905
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CSMW-RS1N-X

1905 census https://www.familysearch.org/ark:/61903/1:1:SP6Y-2HJ
1915 census  https://www.familysearch.org/ark:/61903/1:1:K9JK-RJ5

This is 'a' Celila Cohen death record 1931, married to 'a' Harry, and they originated from Hungary, so there is more than one couple of the same names which means you need to prove your records and not mix the two couples up https://www.familysearch.org/ark:/61903/1:1:2WGZ-1JT

....and a marriage record dated 1917 https://www.familysearch.org/ark:/61903/1:1:Q2CK-TZGT

Their home was often owned by who they worked for, so if they lost their job/was looking for other or better work/was dismissed it also meant they had to leave their home too and with no work contracts and no employment contracts it was often very quick, as in the same day.