No...you misunderstood me. I didn't say the OHS, but the historical society IN the county where these people lived....they, of all people, should know what sort of info there is available on the abolitionists that lived in THEIR county.
I knew nothing of my Quaker ancestors, either, until I traced my Ohio great grandfather back to his birthplace...Chester County, Pa. Luckily for me, my families were well known and well documented, so my research was fairly easy...but, goodness, so interesting. My Quakers came over with Wm Penn, in 1682, and were in Chester Co till moving to Ohio around 1855. Slavery was not always the big issue with Quakers, that it became later and my own Quaker family owned slaves, in Chester Co. in the 1700s. Later, Quakers began to recognize the need for abolition. Those that had moved further south...to Va and the Carolinas.... then began to migrate, many to Ohio, a free state. They could not compete, economically, with slave owners - thus the move.