Marcia,

This is how I would translate the following:

"Albert Philipp Christian Heinrich Stemmwedel, geboren am 30. April 1848 heiratete am 5.
Oktober 1881 in Tessin Louise Johanna Friederike, geb. Behnke, geb. am 7. Juli 1852. Der
Vater des A. P. C. H. Stemmwedel hieß Carl Stemmwedel. Der Vater der L. J. F. Behnke
hieß Friedrich Behnke." [ltr: STAATSARCHIV SCHWERIN 10.11.1986 to my father.]

"Albert Philipp Christian Heinrich Stemmwedel, born on 30 April 1848, married on 5 October 1881 in Tessin Louise Johanna Friederike, nee Behkne, born on 7 July 1852. The father of A. P. C. H. Stemmwedel was Carl Stemmwedel. The father of L. J. F. Behnke was Friedrich Behnke."

This is quoted from a letter dated 10 Nov 1986 from the STATTARCHIV SCHWERIN to my father.

I have no other information on Louise BEHNKE.