I know that Catharina Wilhelm and Jacob Meckes had at least two children--Joseph and Balzer. I don't know of any daughters, but it does seem awfully coincidental. Joseph was born in 1843, and a sister born in 1845 would be possible.
Jacob(um) was married 17 Nov 1838 in Maikammer, Pfalz, Bayern (Bavaria). He and Catharina came to the U.S. in 1847.