Complex sentence: That Lack Township coincides with the Tuscarora Valley is also significant since William Willford's "Genealogy and History of the Willford Family in America" as well as at least one other source identifies the Tuscarora Valley as the area where Joseph Willford settled in Cumberland County.
Split into simpler sentences: That Lack Township coincides with the Tuscarora Valley is also significant since William Willford's "Genealogy and History of the Willford Family in America" William Willford. Canton Minnesota: 1916 as well as at least one other source identifies the Tuscarora Valley as the area where Joseph Willford settled in Cumberland County.