+---John Richard Blackstock
| +---Mary Mitchel 
Patrick Austin Blackstock
| +---Will Countryman
| +---Buford Leonard Countryman
+---Pauline Cornelia Countryman
| +---George Stacey
| +---Amos Stacey
| +---Edward A Stacey (1832-)
| +---Thomas Alex Stacey
| | +---Luisa J ? (1844-)
+---Mildred Pauline Stacey