According to the US Census of 1900, August and Lizzie had been married 18 years and had a total of 8 children, 6 of whom were still living at the Census. This would put their year of marriage at about 1882. Also, Annie was the last child born in Russia (1889) and my grandmother Rosa was the first child born in America (1891) so that puts their immigration somewhere in 1890-91.
US Census of 1910, Lizzie had remarried Fres Ruge (August Carl died in 1904). Also, daughter Clara, age 6, is listed in census.