I only met my bio father last year, was never hard to find, just didn’t have a relationship, I took my mother’s name at birth. Parents are both from the same ish sort of area in southwest England. I know little about my fathers family history but the surname is really quite uncommon and originates back to a very small area and they kind of branched out over the decade/centuries.
anyway, I’ve found a 9 times great grandparent who has the same surname as my bio father and comes from the very same area they originate from meaning that it’s probable that there could be a genetic link between them.
I know that this would be very very small connection and pretty much insignificant but it still fascinates me regardless!
to add I have one ‘both sides’ match on ancestry however I have a lot of matches that are labelled maternal or paternal only but share matches on both sides, particularly really distant matches, so this may explain that!