Hi, In the 1900 Census: MD Baltimore City(l8th ward),Roll 161p. 98, E.D.232 my grandfather Koontz, Edward is listed along with his wife, Roberta B. and their 5 children and aunt. As we never knew grandfather had this first family, we were wondering how to find Roberta's maiden name? We don't know where they were married, the year was possibly 1888 or 87. Thank you....Victoria