Hello. I just found Alvina in the 1920 census and she is listed as a widow so Herman died between 1918 and 1920. I am also having problems finding information their daughters Anna, 1885, Martha, 1889, Emily, 1891 and Margarette, 1900. The daughters were all born in Wisconsin and 1920 census is the last census I could find them in. This is very frustrating and any help is appreciated!