I just saw your post. I too am researching the Maisch line from the Baltimore,Maryland area. My gg-grandmother Johanna MAISCH was born in 1856 and died in 1935. She married a Stephen POPP also from Baltimore.
Johanna's parents were Martin MAISCH (1826-1889) and Catherine BISHOP (1833-1898). They are buried in the Most Holy Redeemer Cemetery in Baltimore.
Please contact me at email@example.com and I can give you some more details.