Looking for info on my maternal grandmother, Bertha Berger. She married William Rotanz of NYC in 1900. They had three children, Eleanor Rotanz (my mother) who married Alexander Anderson Summers in NYC, William Rotanz, who never married and Jean Rotanz who married John J. Walsh also in NYC. Bertha died at age 33 from a "blood clot." I have some information on the Berger and Rotanz familes. Thanks in advance for ant help.