after finding where exactly stems from this mormon lost'tribe'hype [1-1] probably I've engaged in lds primary source stories, so, is that making me unbiased vs JayD logic 
I am pushing him so I would bring extra arguments that all lds narrative simply is christian heresy when seen by epistemological angle, after what is very easy to grasp the rest foundation lds stories, eg. like these with inner earth lost tribes, as I've said probably dispensionalism played role in the convictions of JosephS [2-3/5][2][2] and as could be seen by the comparison in this last footnote obviously he was part of wider guess freemasonic skim that need to bring christian-zionism on the scene so day after that to be used as pretext for joint attack conquer and exploitation of middle eastern reaches, soon after actually was flushed direct freemasonic attack of Ottoman Empire [3-15][3] that lacked only Christians to follow as fodder for "deir" expansionist skim, practically the same spin didnt pass through lds, but it did later remerged through evangelicals and lasts till these days [4][4] this probably was appealing to eg. city'of'london but surely was also seen as risks by freemasons [5-6] thus far later c'o'l would effectuate the idea [6]