Question: Barry Jackson is the former chief of staff to the House Speaker from what state?
Sentence (from "Official Historian of Puerto Rico"): The historians who held the position during the early decades of the 20th century included Francisco Mariano Quiñones, Salvador Brau y Asencio, Dr. Cayetano Coll y Toste, Mariano Abril and Adolfo de Hostos.
Relevant evidence: No