Read it, worked through many of the footnotes. They guy doesn't have a case. Whenever Joseph Smith (and some other people) said something fague (like "no man knows my history), this author claims they were talking about Joseph Smith descending from Jesus.
Author thinks the marriage of Lucy and Joseph, Sr. united two branches of the descendents of Jesus to produce . . . Joseph, Jr.
The closest he comes is some quotes about the first Mormon apostles being related, north Europeans being of the house of Israel, that sort of thing.
I almost wish it were true (not in the literal sense, just in early Mormons taught it). Because if you join it with the Joseph Smith as Holy Ghost incarnate, that would make Lucy, a descendent of Jesus the Mother of God.
And you know how much I like Lucy.
But alas, it doesn't work.
It does have some nice pictures though.
ETA Darth J posted while I was posting. Some good stuff. I don't remember anything that good in Swenson, but its been a while since I read it. I'm surprised Correlation would let that Church News article out as late as 2010. Weren't we supposed to be mainstream by then?