1880 New York Census
Niagara County
Enumeration District 183, Sheet 7, line 7
Wilhelm Gueffroy, age 35, living in Town of Wheatfield
born in Prussia
wife Augusta, age 33, born in Prussia
son Gustav, age 7, born in New York
daughter Martha, age 2, born in New York
1900 New York Census
Niagara County
Enumeration District 189, Sheet 2, line 48
William Gueffroy, born October 1840 in Germany, day laborer
living in Town of Wheatfield; married 34 years
wife Auguste, born February 1846 in Germany
4 children, 4 living
both immigrated 1871, naturalized
son Gustav, born March 1873 in New York, day laborer
son William, born April 1883 in New York, day laborer
1920 New York Census
Niagara County
Enumeration District 156, Sheet 3, line 29
Gustav Goeffroey, single, state highway laborer
living on Niagara Road, hamlet of Bergholtz
age 47, born in New York
father William, age 79, born in Germany, retired
mother Augusta, age 74, born in Germany