Deaths and descendants
Robert and Isabella's children were all born in the Peach Bottom area of Pennsylvania. John Gibson in his York County, Pennsylvania Biographical History, Chicago: F.A. Battey Publishing Co., 1886 lists the children as Emma Jones, William J. Jones, Arthur Jones and Isabella Jones. This is the only source that mentions a son, William. Six years earlier the census had included Emma (8), John (6) and Arthur (2). There is a confused entry in the 1900 census which has been explained here. The 1900 census states that Isabella had given birth to five children, all of whom were living. Evidence presented on the next page will support the case for the five children being Emma E (b Nov 1872), John Hayden (b 9 Sept. 1874), Arthur L (b 1877 or Nov 1878), Isabella (b Aug 1882) and Idris R (b June 1891) and that all the children were born in Pennsylvania. That evidence also shows that Emma's married name was Smith. I am told that the house Robert L Jones had built for himself and his family was quite a grand Victorian mansion which was very lovingly restored in 2011 by its then occupants. One of the 1907 biographies states that all the children were still living with their parents at that time (see next page) but it is likely that John had left home by then.
The previously cited History of York County Pennsylvania (Volume I) indicated that in 1907 R. L. Jones, and his two sons, Arthur and John Jones were running R. L. Jones & Company of Delta. However, Robert died later that year and within ten years his youngest son, Idris, had joined the family firm and become a quarry manager.
This site informs us that Robert died from tuberculosis on 10 February 1907 and Isabella died in 1917. Both are buried in Slateville Presbyterian Church Cemetery, to the east of West Bangor. It is sad that, having prospered in the slate industry and having given so much to their community, their graves are marked by such simple stones and not by one of the splendid slate memorials that grace the local cemeteries.