Gottlieb Kaus Family Portrait (Late 1800's) Standing: Mr. Porter; Julia; Fred Sitting: Gottlieb Kaus holding Ethel Porter; Pauline Aurer; Martha This picture was taken at 1116 East 6th Street in Duluth, Minnesota. Julia Kaus was wife to Mr. Porter. Pauline was wife to Gottlieb Kaus, and was 38 years younger than he.