I have just been reading your series of posts about our family. I am flattered that I was quoted and referenced so often.
Much or most of the oldest info that I have came from material in a number of different "biographical sketch" books published in the late 1800s and early 1900s, some with George William and several with his older brother, T. A. E. Weadock, who reputedly researched the family tree and visited Ireland a number of times. These biographies, I am sure, contain information provided by the subjects at that time, and I consider them to be more accurate than more recent writings or rememberances of others that were not written down.
I have never seen or heard that the Weadock, etc. family was involved in "politics" per se in Ireland, however the following is quoted from a biographical sketch of T. A. E. Weadock:
"Lewis Weadock's family, although originally Flemish, was prominent in Irish affairs for many generations." 
 Men of Progress, The Evening News Association, Detroit, 1900, p.508.
"Lewis was of Irish birth and was reared on a farm in his native island. He became a stone mason, and in early manhood did stone work in railway tunnels in Scotland."
T. A. E. Weadock, the third son of Lewis and older brother of George William, was born in Ballygarrett, County Wexford, om 1/1/1850, and was named for Thomas Addis Emmet, who endured a "Four year imprisonment for participating in the failed Irish uprising of 1798." He then became "The Agent of the United Irishmen in Paris, who left Brussels for the French Capital early in 1803, to act in that capacity on definite instructions from the Provisional Government in Ireland." a prominent Irish lawyer involved with the Irish Revolution, who later came to the U. S., where "He was reputed to have more retainers than any other New York lawyer of his day, and was recognized as a leader of the New York Bar."
Hope this belatedly adds some useful information to the discussion.