The Reconstruction implemented by Congress, which lasted from 1866 to 1877, was aimed at reorganizing the Southern states after the Civil War, providing the means for readmitting them into the Union, and defining the means by which whites and blacks could live together in a nonslave society.
Private Knowledge DNA Sibling Test starting at $150 and Legally Admissible DNA Sibling Test starting at $255. Analysis of the DNA of two separate individuals can provide information as to whether they are full siblings, half siblings, or not related.
Either two individuals can or they cannot be siblings, or parent and child. There is no in-between (but there can be on a DNA test, but that is a fault with the test and not with the relationship between those two individuals). In our case it is the probability of the event of two individuals being siblings.