I wish I could give you info. My gr gr grandparents William Francis Black and his wife Hannah Cook went to Troy Ia about Oct 1860 with their younger children. They appear on the 1870 census for Jefferson Co. Ia. also son Frank (Franklin) I do not have any info on Frank's family.
William F Black was b 1810 in Pa, Hanna was b 1814 in Pa, They were married in Ohio, and lived in Richland Co, Oh. until they went to Ia.
If we cann connect I can give you more info on Black and Coo lines