My Great Grandmother's name was Maryanna Roznowski Wojtkowiak. While searching for her I found this record of an arrival in the book German Immigrants to America. It is for a Johanna Roznowska leaving Prussia for Michigan. She had 3 children with her. She was 30 at the time. Stefan 6 M,Clara 4 f, Sewera 11 mths f. The ship was the Dresden.It left from Bremen and arrived in Baltimore on 30 November 1892. Hope this helps someone.