I found a small tree on Ancestry, that originally was on a Family Tree Maker disc - World Family Tree Volume 2, that has Marcin Bialas married to Marianna Popek on Feb. 23, 1873 in Mazury, Ranizow, Rzeszow, Poland. The tree shows daughter Zofia born March 30, 1881 in Mazury, and Eva born in 1892 in Mazury. There is no submitter attached to this information, and I have not been able to find this same information anywhere else. The tree has Zofia married to Ludwick Swyt, born Feb. 18, 1881 in Gwozdzies, Ranizow, Rzeszow, Poland, son of Michael Swyt and Helen Klena. Zofia and Ludwick both died in Cleveland, Ohio, USA.