Descendants of Mary Maxwell, married Isaac Wall, probably in forward Twp, Allegheny Co, PA
           
    1     Mary Maxwell   
.        +Isaac Wall     1770 - 1834
........    2     Rebecca Wall    - Bef. 1834
........    2     John Wall    1798 - 1869
............        +Mary Cumberland    1802 - 1876
........    2     Maxwell Wall    Abt. 1803 - 1877
............        +Elizabeth Jobb     1811 - 1898