I believe that our ancestor is the Matilda BLANK of the following 1860 NYC census................ Matilda BLANK married John GRENNAN in 1862 in NYC .... and her sister Anna Emily BLANK married Anthony VOELKER about 1869??? Dr. BLANCK had offices on Desbrossea Street near Greenwich Street, New York .. May of 1869. His son-in-law, Anthony VOELKER was also a medical doctor .......... Is anyone else researching members of these families?? .....1860 census New York County ... New York Ward 5 District 1, New York, NY Geo Blank 50 1809 Preußen Male Annie Blank 40 1819 Preußen Female Annie Blank 19 1840 Preußen Female Matilda Blank 15 1844 Preußen Female Emma Blank 14 1845 New York Female ................... 1845 .......... Josephine Blank 7 1852 New York Female Camiel Blank 2 1857 New York Female Annie Brenan 18 1841 Ireland Female