When Benjamin Ostrander was born on 16 January 1777, in Town of Poughkeepsie, Dutchess, New York, United States, his father, Christoffel Ostrander, was 39 and his mother, Aaltjen Romein, was 37. He had at least 2 sons and 2 daughters with Marytie Ostrander.
Altered form of Dutch Van Ostrande, which is most likely a variant of Van Nostrand formed by misdivision of the preposition van ‘from, of’ and the placename. The surname (Van) Ostrande is not found in the Netherlands.
Swedish: probably of the same etymology as Ostrand , the addition of the suffix -er giving the appearance of a name formed with the suffix -ander, derived from Greek anēr (genitive andros) ‘man’. This surname is very rare in Sweden.
In some cases reportedly also a shortened and altered form of Swedish Sjöstrand (see Sjostrand ).