About us
The Terwilliger Surname, with it's alternative spellings such as Terwellegar, Terwelliger, TerWilligen, etc, is a unique opportunity to study the history of a family believed to be found by this name only in North America. Because the progenitor of this family used the patronymic system of naming until after immigrating to America from Holland, it is believed that this surname originated in NY, USA.