There were 961 individuals recorded at that time using the surname Roosevelt, and of these, 64% identified as being white, 27.26% black, 1.87% Asian and Pacific Islander, 1.77% American Indian and Native Alaskan and 1.66% of Hispanic ethnic origin.

[2] In 1410, William III, Duke of Bavaria, Count of Holland and of Zeeland granted amt fiefdoms north of Tholen to six lords.

The vassal lords held several powers from their position, such as appointing the steward and alderman that governed the municipal area, inflicting corporal punishment and even pass death sentences by hanging in several situations.

[5][6] Claes Maartenszen van Rosenvelt, the immigrant ancestor of the Roosevelt family, arrived in Nieuw Amsterdam (present day New York City) some time between 1638 and 1649.

Around the year 1652, he bought a farm from Lambert van Valckenburgh comprising twenty-four morgens (48 acres (19 ha)) in what is now Midtown Manhattan, including the present site of the Empire State Building.

His children Johannes and Jacobus were the progenitors of the Oyster Bay and Hyde Park branches of the family that emerged in the 18th century, respectively.