My wife's great-great-great-grandfather was Rufus Black. He was born 22 Jan 1836 and was killed during the Civil War on 27 Jun 1864. I ordered his Civil War Pension records from the National Archives to see if they might have more information on him and his parents.
Rufus Black was enrolled 12 Oct 1863 in Company K of the 2nd New York Veterans Calvalry, to serve for 3 years or during the war. He was mustered into service as a private on 10 Nov 1863 in Saratoga, NY.
On the muster roll of Company K of that Regiment, for the months of July and August, he is reported to have died June 27, 1864 in hospital at New Orleans by fall of his horse in action April 4, 1863 near Camptri, Louisiana.
While unfortunately this record does not reveal much more about Rufus's family. It does note a witness named "Hiram Black" who I had as Rufus's father. It also notes another witness with the last name of "Wait" which provides some additional evidence that Clarintha (Bloss) Black, Rufus's wife, is the child of Joseph Potter and Nancy Wait – this "Wait" as a witness could be her cousin perhaps.