This essay briefly surveys the rich benefits a project like the Congruence Engine offers to national textile collections. Digital technology provides the means to bring dispersed material, written and oral collections together into one space. However, it also has limitations, and the following will also touch upon these. We finish with an overview of themes such a project should engage with and conclude with a mini study of the pre-Samuel Greg (Quarry Bank Mill) family context and how this links the Mill, the collections held at the Northern Ireland Record Office and West Indian Plantations together.