Tracing relatives of Joseph Ross (whose father was also Joseph) m 1848 Catherine Carrol (her father was James Carrol). They had 2 daughters that I know of Susan (Susanna) b 1852 & Sarah b. 1860 possibly more siblings in between. By 1874 Catherine, Susan & Sarah were in Glasgow. Susan m Patrick Devlin, & had Patrick 1877, Joseph 1879, William 1882, Elizabeth 1885, Catherine 1888 & James 1890. Sarah m Alexander McDonald and had a number of children including Sarah b. 1898 who married ? MacFarlane
