This enslaved ancestor's profile has a preliminary Last Name At Birth (LNAB) until a surname can be determined. Please see the US Black Heritage Naming Conventions for Slaves before merging or changing the LNAB.
Aaron Turnbull Jr. is a part of US Black heritage.
Aaron Jr. was born before 1856. He is listed with names of enslaved persons that came from various papers of the Bowman-Turnbull family. He was loaned by William Turnbull to Mr. Freeman in 1856.[1] The list mentions him as a "fool".
Although the list does not mention this explicitly, Aaron Jr. is probably the son of Aaron.