Question: In what county in New Hampshire had significant development in the second half of the 19th century and first decades of the 20th?
Sentence (from "Riley J. Wilson"): Riley Joseph Wilson (November 12, 1871 – February 23, 1946) was a Louisiana educator, attorney, and legislator in the first half of the late 19th century and the first decades of the 20th century.
Relevant evidence: No