From the Preface:

The de Peysters were an armigerous family of Ghent, and can be traced as landowners of some importance in that neighborhood as far back as the thirteenth century. By custom they were associated with various of the mediaeval guilds of Ghent, especially the Goldsmiths' Guild, serving frequently as Chief-Dean and Syndic of more than one. Many, including Johannes de Peyster's grandfather, Josse de Peyster (1554- ?) of Ghent, were described as goldsmith, probably in the old meaning of banker. Their conversion to Protestantism caused the family to take refuge in Holland, while some established themselves in London and in Rouen.

The interest of the author, Waldron Phoenix Belknap, Jr., in his Dutch and Colonial ancestors prompted him to write this book. His painstaking research has given us a record of the de Peyster family up to the present, and brought to light many interesting and little-known facts about the family. Attention is called to the variation in the spelling of some names, in many instances of the same person, but the spelling follows the records as found.