A major duplication
I found a major duplication, but it is more of a mess than I would want to try to merge. So I leave it here for someone else who might want to take it.
This guy William G. Lawrence (G35X-V7F) and all or most of his ancestors going back 12+ generations are duplicated with this William G. Lawrence (G829-2MX) and his ancestors. The complication is that one is listed as born 1309, going back to 900 and earlier. The other is born 1930, but their lines are definitely duplicates. The other complication is that the one born 1309 (but should be 1930) has 9 generations of *descendants*. This can't be correct, as someone born 1930 can't have that many. So it's a mess, but more of a mess than I want to deal with.