Mapping Surnames

Here’s the first example I’ve seen of mapping surnames across the United States. Following an example in the United Kingdom too and the global version. Last summer I asked one of the developers of the UK version how conclusions overall are affected by female names changes (for those of us who have adopted our husband’s names). I mean, it’s really just a snap shot in time for last names, right? Just interesting that the UK version, indicating change over time, loses those of us whose birth names no longer register in the system…