Please see below from Adam Rosenkranz, the subject specialist librarian for England. Make sure to look through these resources!
Just to let you know that as part of my project to enlarge the history research guides — and by popular request — I have separated out the UK from the fine continent of Europe and have created a separate guide for England.
And the history portal:
Please feel free to share with your students. As these guides are perpetual works in progress, I always welcome comments and suggestions.