Not buried in the Wagner family plot with his parents and some of his siblings is Adolphus H. Wagner. Adolphus was the son of Emma Foertmeyer [1837 - 1894] and Stephen Wagner [1835 - 1873]. Buried with their parents are William S. Wagner, Bertha D. Wagner, Edwin Wagner, and H.A. Wagner. Not buried in this plot are sister Victoria and brother Charles. At this time I do not know where they are located, or if there might be any other siblings.
As to Adolphus, he married Mary Louise Wunder, a younger sister of Anna Wunder who was married to Adolphus's 1st cousin, William Louis Foertmeyer, born in 1861, the same year as was Adolphus.