Headscratchers: A Girl and Her Fed

What happens with ghosts who were important in multiple cultures/countries?
We see that Ben Franklin hangs out in the U.S., and it takes him a lot of effort to go outside of his usual baliwick even though he spent a lot of time in France while he was alive. But what about ghosts like, hypothetically, Charles Lindbergh, who spent time in France and England as well as in the U.S. and is arguably an even more popular historical figure in modern France than in the modern U.S.? Would he (or anyone else in a similar situation, but perhaps someone who was even more binational) have free reign to go between those two countries? This seems highly implausible given what we've learned since the Time Skip, but would it be like American Gods, and there would be an American Lindbergh and a French Lindberg, and they could perhaps even meet up for coffee sometime while one or both of them were out of their usual stomping grounds (again, highly implausible)? Has there been anything that might indicate an answer in the comic or in comments made by the author?