Question 559432
There are too many variables involved, so you can't really "solve" this. Keep in mind that "six degrees of separation" does not mean that person X can reach anybody in six friendships, but it is more of an average. 


Also, you have the year 1942, 142 years after 1800. You have to take into account different generations as degrees of separation.


Furthermore, you can't prove that it is even possible to reach everyone, because if you have a disjoint graph, or one that is separated from everyone else, you can't reach them.