I have just completed a free online course facilitated by Trinity College Dublin on Irish lives in War and Revolution: exploring Irish history 1912-23.
Using video tutorials , newsreels, articles, posters, diaries and songs, it takes you through the material that is availble on this period which is fascinating especially for those with Irish ancestry. I have discovered many more sources of information that I will use to try and find out more on the O’Gradys.
Futurelearn do all kinds of courses for free including one on genealogy. To find out more go to their website.