Dutch Americans
While the Netherlands was a small country, the Dutch Empire was quite large so emigrants leaving the mother country had a wide variety of choices. New Amsterdam was not high on their list, especially because of the Native American risk. The major Dutch cities were centers of high culture, but they still sent immigrants. Most new arrivals were farmers from remote villages who, on arrival, in America scattered into widely separated villages with little contact with one another. Even inside a settlement, different Dutch groups had minimal interaction. With very few new arrivals, the result was an increasingly traditional system cut off from the forces for change. The people maintained their popular culture, revolving around their language and their Calvinist religion. The Dutch brought along their own folklore, most famously "Sinterklaas" (the foundation of the modern day Santa Claus) and created their own as in "The Legend of Sleepy Hollow". They maintained their distinctive clothing, and food preferences and introduced some new foods to America, including beets, endive, spinach, parsley, and cookies.
Dutch Burghers
The Dutch Burghers largely descend from the Dutch people, with mixtures of Portuguese Burghers and Sri Lankans (either a Dutch father and a Sri Lankan mother, or a Sri Lankan mother of Dutch descent and a Sri Lankan father). However direct Dutch ancestry is not always the case. Many Dutch Burghers can also claim lineage from other European protestants who moved to the Netherlands and joined the Dutch East India Company fleeing Catholicism. Hence, names from Germany, Switzerland, France, Italy and so forth are common (e.g., Schockman, Slemmermann, Piachaud,and Sansoni). Some names however have since become extinct (or are on the verge of extinction) in Sri Lanka due to migration following independence and Sinhala-only nationalist movements forbidding Burghers, whose vernacular language was English from continuing the jobs they had maintained prior to independence in the civil service etc.(e.g., Blaze, Leembruggen).