📗 For this work Mr. O'Callaghan set for himself the task of identifying the name, location, and date of service of every Dutch official to serve in New Netherland until the last trace of Dutch authority was removed in 1674. The book opens with a helpful chronology of the life of New Netherland, commencing with the colonization of 1623. Working from official records, O'Callaghan then proceeds to enumerate by category and thereunder by date The Register of New Netherland.