I'm responding to an ancient post but thought I'd try to check in and see if you have gotten anywhere over the years with James Murray of Baltimore (m Jemima Morgan). I'm descended from them, probably through their son Morgan and grandson Morgan, through whom I connect to the large Washington County, Tennessee, Murrays, as DNA has shown despite written documentation lapsing some. (Keith, Keith, Wilson, Jordan W., Jordan, Morgan...)
The myriad genealogies showing James Murray as being the son of John Murray of Tullibardine and Jane/Jean McLean are based on undocumented assumptions, and one person saying he had seen something in Scotland that he never had copied or shared. I asked a Scottish genealogist for help and she found nothing to support this or another rumor, which is that James Murray's father was a Rev. John Murray, who was a legitimated son of either John Murray, Earl of Tullibardine, or his father. The seal James used with his will is not definitive proof of anything. Check this link for info:http://www.geocities.com/orbweaversweb/gen/murray.html
Well, that's about all I know. I would like nothing better than for James to be a Tullibardine Murray, but wishing doesn't make it so, nor does copying unproven lines from the LDS site, as everyone has been doing.