Philipp Sum and Theresa Meier of Baden New York

Looking for information regarding....

Philip Sum born 1827 Baden, Germany and wife Theresia/Theresa Meier/Maier born about 1827 in Baden. Married 1 Jan 1856 in New York City, New York, USA.

So far I have names of 3 daughters, Philippine, Cecilia and Josephine, born Brooklyn, New York, USA. I have a connection through their daughter Cecilia(1861-1915). I believe they had more children. Want to know if anyone out there has information regarding other children. Would appreciate it very much. Trying to add more names to my family tree.

Regards,

Sandy