[OL]Schwans family

Looking for any information on Schwans (and all various spellings) in and
around Oldenburg relating to this family:

Didrick Schwans

Eilert Schwans (son of Didrick)
Married Bouka Wortelker, Oldenburg
Daughters Anna and Johanna

John Schwans b. 1848, Bokel, Oldenburg (son of Didrick)
Married Bouka Wortelker ca.. 1867 (Same Bouka as above)
sons Fred and John
Emigrated 1881

Thank you.

Neil Matheny