Kurt has the following in his Rohn family document (http://www.wwjohnston.net/famhist/kreis-anklam-images/Rohns%20in%20Chicago-Kurt%20Hitzeman.doc):

Rhn400  christian Wilhelm Rohn                            + 1857 Jun 16                                                Rhn300

            m 1831 Apr 23   Marie Stegemann              + 1889 Mar 23

            * 1829 Sep 2    s. Carl                                    m~1852  Maria Dietrich                    Rhn450

* 1832 Jan 6   s. Wilhelm                             m 1864 Pagels                                   Rhn500

            * 1833 Nov 10 s. Johann                              m~1861 Eickert                                 Rhn480

            * 1837 Jan 23 s. Heinrich                            m~1866 Henrietta                              Rhn520

            * 1839 Feb 13 s. Christian                           m~1862 Johanna                               Rhn460

            * 1843 Jul 20  s. Friedrich                           m 1864 Karr                                       Rhn510

            * 1846 Feb 10 s. Rudolph                            m~1871 Minnie                                  Rhn540

She [Marie Stegemann] was born 1805 Sep 24 (buried in Wunders Cem with Johan her son).   

They were married and lived in Spantekow.

The widow arrived in NY 1863 May 23 with Christian and Rudolph. 

[Wesley Johnston Note: her death was actually 24 Mar 1889, per the death record.]