Cornelia Holterhoff Oberhau 

Cornelia Holterhoff, the eldest of Robert and Henriette's six children, was six years older than her young sister, Clara. She married Ernst Oberhau in 1854. They had one child who died at a young age and Cornelia herself died at the age of 32.  

We don't have much information on Cornelia or what happened to her husband after she died. 

Frieda's Scrapbook

Cornelia Holterhoff Oberhau