(Seven Springs, NC USA)
Our cat Lincoln
I think the myth about the Maine Coon being a mix between a domestic cat and a bobcat is highly possible. My ex-wife and I got a maine coon kitten from her brother who had domestic cats in an area of Virginia that is also known to have bobcats in the woods near his house.
One of his mother's cats came home one day from being out in the after several days. Several weeks later she gave birth to a litter of kittens which all turned out to be Maine Coon when her own bloodline had never had any Maine Coon kittens.
I had spent the night at my ex's brother's house on many occasions prior to mine and her divorce of course and have heard and seen the bobcats in the woods next to his house.
All of what I have just stated gives me reason to believe the myth of the Maine Coon being a cross between a domestic cat and a bobcat may very well be more than just a myth. Of course I can not say positively that this is the case because I did not actually see what his momma kitty mated with, but still I believE it still makes a good case for the mix.