1. Chartulary books: a source for migration in Scotland, 1740–1850;Lockhart;Local Population Studies,1978
2. Sources for studies of migration to estate villages in north-east Scotland, 1750–1850;Lockhart;Local Historian,1980
3. Patterns of migration and movement of labour to the planned villages of north-east Scotland;Lockhart;Scottish Geographical Magazine,1982
4. Migration to planned villages in Scotland between 1725 and 1850;Lockhart;Scottish Geographical Magazine,1986
5. Short-distance migration in Scotland in the seventeenth century;Whyte;Open University D301 Historical Social Structures Newsletter,1984