Here is what I have (taken from books by Fred Inlow, Col. Thomas, and E. E. Enlow)By the way Fred recieved numerous certificates, awards, honoraries, etc. for his work in geneology.
Henry Simpson B:April 30 1764 James b: Oct. 20 1766 Jesse b: March 10 1768 Jacob B: 1769 Mary b: 1772 Abraham b: March 25 1777 Rebecca b: Aug 3 1788
I don't have the original book, but I have a copy of it.It is HUGE.I also have the manuscripts by Col Thomas, and E. E. Enlow, both of which are available through the Maryland State Archives.I know that the manuscripts state a different date for James (shows 1767). A researcher for the Maryland State Archives (I would have to look up his name now) told me that this was a typo, and that the information the archives has shows that James was born in 1766.I will take his word for it, and it also straightens out the dates, making all names possible for children.Which is also a pretty consistent list!. Hope that helps