We describe the integration of old maps, descriptive gazetteers and a large library of travel writing into the Great Britain Historical GIS, presenting a range of approaches to geo-referencing diverse historical sources. While previous parts focused on legally defined administrative areas and statistical reporting units, these qualitative sources concern a less formal geography of "places". We link these to administrative units in two ways: places are contained within units, but units are named after places and are consequently subsidiary to them. While rejecting existing gazetteer data standards, the approach aligns well with that of historical place-name researchers. The final section describes how the structure interacts with search engines to support a very popular web site for lifelong learners.