Fred and Edna were married. Walter and Hattie are Edna's siblings. Their parents were Philip Krausgrill and Lina Gumbel Krausgrill, who both were born in Germany and immigrated to San Francisco. Edna and her family lived through the 1906 Quake when they had a house in Russian Hill Neighborhood, which fell to the fires (control burned) after the quake. After losing their home, the family moved to their summer cabin/cottage on E. Blithedale Ave in Mill Valley. Fred Glahn was born in Petaluma to Danish immigrants Fred Sr Glahn and Marie Hansen Glahn. Walter was a famous musician and composer.