Dr. Reuben D. Black practiced medicine in Sangamon Co., IL from 1830 to abut 1837 and in Johnson Co., MO from 1860 until he died in 1893. Reuben married Nancy Alkire in Sangamon Co. (now Menard), IL. They divorced then he married Hannah E. Biggers sometime after 1840 and they are found in Johnson Co. MO
His children are:
By Nancy Alkire: Joseph Penn Black 1832-1900; David A. Black 1834, Elzina Black 1835.
By Hannah E. Biggers: John Adolph Black 1852 and Joseph B. Black born 1856