There is a Hermine Auguste Louise Schmidt born on 5 Jan 1854 in Kummerow, district Beeskow-Storkow, Governmental district Potsdam, province Brandenburg, Kingdom of Preußen, Deutscher Bund.
The parents are night watchmann Friedrich Schmidt and Justine Friederike Schmersen. (No. 1/1854 parish record Kummerow).
But there is no evidence that she married Wilhelm Friederich Kapernick from Stendal. The distance between the two places is 295 km, I would never believe without further reference.
But I saw, that it could be Stendell, that is possible, because that is near by, only 7 km.