Learn all about the key resources available for researching ancestors in Middlesex. Discover the key archives covering this county, situated right on the border with London, and how to use their catalogues and other resources. Find out where records for Middlesex can be found online both within the main commercial websites and county specialist sites. Learn about key historical events that may impact your research in Middlesex, including important boundary changes. Investigate where else you can get help such as the relevant family and local history societies. At the end of this talk, you will be set up for starting your research on your Middlesex ancestors. Note that the talk assumes you have already watched ‘Introduction to County Research in England’.