Elisabeth, I took a look online on rootsireland.ie to see if it listed children of Andrew Johnston and Nancy Wallace and there were three hits. >From there I took a look at www.familysearch.org and found the following: William Johnston Born 11 Aug 1865 in Coagh https://familysearch.org/pal:/MM9.1.1/FR92-L5T Wallace Johnston Born 30 Oct 1867 in Coagh https://familysearch.org/pal:/MM9.1.1/FPCC-WW5 Annie Johnston Born 17 June 1867 in Coagh https://familysearch.org/pal:/MM9.1.1/FPJG-QS8 Keep in mind Civil Registration for births, deaths, and marriages did not start until 1865 So there could very well be other children not accounted for here. I was also able to find on www.rootsireland.ie that Andrew Johnston and Nancy Wallace married in Cookstown Tyrone in 3 Sep 1860 Andrew's father's name was Joseph. Nancy's father's name was William. https://familysearch.org/pal:/MM9.1.1/FG6R-F6R I trust that the two sisters and brother Joe were all born prior to Civil Registration. One of these could be your Joseph in the 1901 or 1911 Census in Co. Antrim but I do not believe they are the same person. http://www.census.nationalarchives.ie/pages/1911/Antrim/Shankill/Tudor_Place/160143/ http://www.census.nationalarchives.ie/pages/1901/Antrim/Dock_Ward/Fleet_Street/1003270/ If I think of anything else to look for I will let you know. Regards, Michael Kelly Emporium, Cameron County, Pennsylvania, United States of America P.S. Merry Christmas and Happy New Year to all on the list.