A History of the Schenectady Patent in the Dutch and English Times: Being Contributions Toward a History of the Lower Mohawk Valley. E-book. Formato PDF Jonathan Pearson   -  Forgotten Books, 2017  - 

Professor Pearson's unique collection of facts has been at the service of all who sought to write on the subject and much has appeared from time to time from others, which was strictly his work. In the study of the subject he is unquestionably the best guide and it is doubtful if any facts essential to a history of the ancient Schenectady Patent have been overlooked by him.