Martha Orvis Walls was the daughter of Catherine Stoddard Catherine Stoddard, who m. Wilbur S. Orvis, was the daughter of Catherine Blanchard and James Stoddard. Catherine Blanchard was the daughter of Jonathan Blanchard and Mary Avery Bent. Source: The Jonathan Blanchard Family prepared by Elizabeth Schober for the 125th anniversary of the founding of Wheaton College in 1985. Note: This source does not give any dates. John Blanchard, great grandson of Jonathan Blanchard