For years I knew virtually nothing about my father's family, but lots about my mum's. Didn't know the origins of my surname, paternal grandfather was born abroad and didn't have any records in UK except 1 census return. Dad now has dementia so sadly couldn't give me any info, but I remembered he once said his grandfather was buried in the Pere Lachaise. That was the key. I found consular return of his death in Paris, with dob. Then traced his family all the way back to a village in Norfolk in the early 19th. It's been like finally completing a puzzle.
The more you think of it, the more addictive it becomes. After all, your surname comes from just one long ago male ancestor, you have many many more and as I checked records it was obvious London in the 19th century was one big melting pot of people pouring in from all corners of the country and beyond (there are also germans and scots in there).
But as the 1st census was done in 1821 (I think) how do you work back before that? There also seems to be a west country branch. Do you have to go to the local county records offices? Or could you access say Parish records for Devon in the 18th century online?
Thanks if you've read so far! Any advice gratefully welcomed.