I'm currently researching the following surnames, on both my father and mother side. My father was Albert Duffy, and his father was William Duffy, both from Phila, Pa. My mother was a Tolbert and her mother was a Koenig, from Phila also, as far as I can find. I've tenatively dated my grandfather as being born in 1871, and his wife Sarah Majors in 1877. My father was born in 1904, with two sisters, Sadie b1901, and Edith b 1916. My mother was b 1913, with two sister and one brother,John b abt 1901, Christina b 1907, Caroline b 1918. My grandfasther was John Tolbert , and my grandmother was Christine Koenig, both died abt 1919. If anyone has anything to add , please feel free to contact me, and maybe we can trade information.