Comparison of the DuBols Fort historical oak chronology from the middle and rear cellar rooms with the New Paltz oak dating master derived from the Jean and Abraham Hasbrouck houses. The oak dating master was in turn independently dated against a regional oak master. This result indicates that the original DuBois Fort was constructed from trees cut in late 1703 or early 1704. The two oak series have an extremely high correlation that is significant at much less then the 0.001 level, or 1 in 1000 of being wrong. With a correlation of 0.75 between the two series, it is almost certain that the trees came from the same woodlot as well.