I am related to the Engelkenhohanns. I'm not sure how they are connected though.
Henriette Charlotte Wilhelmine Engelkenjohann was my Great Great Great Grandmother. Henriette married Heinrich Christian Ludwig Stegemueller. Their son was Heinrich Christian Fredrich Stegemueller. It was Heinrich and Henriette who immigrated to America from the Levern, Westphalia, Germany area. They lived in Washington County, Texas.
Henriette's parents were Christian Friedrich Engelkenjohann and Henriette Charlotte Louise Bredebusch. Christian's mother was Maria Agnese Louise Engelkenjohann. Couples in Germany would take the last name of the spouse whose family had more money/property. Her father was Diederich Wilhelm Engeljohann.