They went to Ohio, then Missouri, then back to Illinois, and then when JS got shot, they split up into the Smith family Company (called Reorganized LDS) and the Brigham Young Brigade (who maintained the original name).
The Smith family headed to Independence, Missouri and many different offshoots went their separate ways including many of the folks back East, in Wisconsin, Kentucky, and Texas.
I'm sure you can see the difference between a "historical record" and "bias and speculation".
Many thanks.
I must overcome my tendencies to err on the side of reality. At least if I want to journey celestially, that is. :)