Du Bois, Henry C.
BORN: 16 November 1845, Ulster County, New York
DIED: 3 March 1931, Poughkeepsie, Dutchess, New York
ACTIVE:
New York, New York, New York, 1880 [res: 260 West 33rd St.]
717 Sixth Avenue, Manhattan, New York, New York, 1882–1884
New York, New York, New York, 1886 [res: 311 Eighth Ave.]
New York, New York, New York, 1888–1899 [res. 347 West 35th St.]
Brooklyn, Kings, New York, 1900–1901 [res. 178 Chauncey St.]
Du Bois & Nolting, 989 Third Avenue, Manhattan, New York, New York, 1903–1913
The only photographer Du Bois that I can find active in New York at this time is Henry C. Du Bois. I am speculating that he is the operator of the Du Bois Art Studio, but the center insignia on the card appears to read either "WB" or "BW," so I'm not certain. I have not been able to find an advertisement or directory listing for the Du Bois Art Studio in Brooklyn, but I can't account for Henry Du Bois's activity from 1885–1903, so it's possible that the studio was in operation at some point during that time.
The Kingston (NY) Daily Freeman, March 12, 1931, p. 6