Hi Paul, I am researching the Readys of Virginia, Kentucky, and Missouri. There seem to be a couple of lines but not too many that anyone with the surname Ready is important to investigate.
My ancestor, Isham Ready, can be found in Amherst County, VA around 1799 as a witness on the will of Jonathan Reid. The Reids later moved to Madison County, KY and a Crawford Ready appeared on the 1810 census there along with lots of Reids. Crawford had married Polly Reid of this family in 1807 in Garrard County, KY. I believe that there is a connection between my Isham Ready and Crawford Ready.
In 1815, Isham Ready and Crawford Ready appeared on the tax list in Adair County, Kentucky. My James Ready appeared with them in 1819 on the tax list. No Readys in Adair County, KY after 1819. My James moved on the Boone County, Missouri. Isham Ready dies in Harlin County, KY and I don't know what happened to Crawford Ready. There are several Isham REadys perhaps a couple of generations and I am not sure I have them all straight yet.
I am mentioning this because I am hoping that you may have found more information about James Crawford Ready since you posted this query. Also, hoping that some of the Readys mentioned might tie in to your family.