I believe David and James Rumsey are related but that's just me.Most of these families were Surveyors for Thomas Lee the President of the Ohio Company.Thomas Lord Fairfax was more or less the CEO of the company. The boats were needed to get to the surveyor jobs quickly.
Gov Thomas Sim Lee is a descendent of Thomas Lee.
Thomas Lord Fairfax grandfather was a General under Oliver Cromwell's Army.
Indeed Gov Thomas Sim Lees son Thomas Lee was married to Eleanor Cromwell the only daughter of Richard Cromwell of Baltimore.
I am thinking that Sacajawea was really Powhatan and not Shoshone. If you read high level stories on Chief Pawhaten, it was said he was related to both the Aztec and Crow Native Americans.Indeed Sacajawea's brother was Chief of the Crow by the stories of Lewis and Clark.If that is true, then it leaves little room for her to be Shoshone. The Crow people surly would not elect a Shoshone as their Chief.
The bottom line is, I believe everyone on the boat was related including Sacajawea.If Sacajawea was Powhatan then that would mean she was related to the Randolph's of Thomas Jefferson. This gives a much clearer picture of the trip.
It also give me reason to believe her two grandaughters by Baptiste are named Barbara and Margaret Myers as stated in the Grace R Hebard papers on Sacajawea.
The Floyd family of Sgt John Floyd claim they are related to Pocahontas's sister Cleopatra. It's more of the same thing on family ties.There is no reason for them to do things differently on the Lewis and Clark trip.