This research project has collated information on the behaviour of congregations of the three nationally organised Presbyterian denominations active in Scotland between 1843 and 1874. Data covers attendance, building size, congregational giving, and stipend levels. It has been collated to permit inter-denominational comparisons of activity during this period of intense competition in local religious markets. Nine MS-Excel spreadsheets collating data on parishes of the Church of Scotland in 1874, on congregations of the Free Church of Scotland in 1854, 1864 and 1874, on Presbyteries of the United Presbyterian Church of Scotland in 1858, 1864 and 1874, together with summary data from the Census of Population, 1851, Religion and Worship (Scotland).