@SK53 @nfgusedautoparts I don't know if it was the same one or a similar one that I investigated before where I managed to find a spreadsheet at the National Archives website but IIRC it didn't actually contain any coordinates just a vague address and a broken link to the defunct site.
@SK53 @nfgusedautoparts the "History Commons" site it redirects to has this page listed: https://history-commons.net/artifacts/2678911/ho_203_data_transcription_update/3702137/
I can't see a link to download the dataset, presumably because it's listed as "Premium" and I'm a pleb?
@InsertUser @nfgusedautoparts @ohm That's much better than my own attempts to find it!
Still effectively behind a pay wall (seems to be for uni libraries who presumably have an SLA).
@SK53
The last Wayback machine copy of the site before it became a redirect has a link to "download the full dataset", but the resulting excel file only has the date and a very vague "location" (town/area) listed. Nothing near the sort of detail that would have been needed to put pins in a slippy map:
https://web.archive.org/web/20220929014213/http://www.warstateandsociety.com/Bombing-Britain
I think this was the site I was trying to find a copy of here: https://en.osm.town/@InsertUser/111201442518197931
SK53
InsertUser