Good Morning Sean,
It is so very nice to finally meet a fellow cousin I never knew! (extending right hand)
Yes, many Irish cousins came to the New World during the late 1820s and early 1830s, well before the famous Potato Famine. Many were Catholics escaping religious persecution and, eventually, many made their way into the United States and other parts of Canada.
William and Ellen Hopkins reared several boys (I am unaware of any daughters born into this union), and New Hampshire, Massachusetts and Vermont finds several Hopkins family members, today.
Ellen's maiden name is Lappin or Lappan, and she died fifteen years before her husband, William Hopkins. He remarried Catherine McGuire. The McGuire families can, also, be found on both sides of the Connecticut river in Vermont and New Hampshire, today.
John Judge is a tough one to follow. Primarily, he lived in Leeds and was married several times. His last marriage, 20 Oct 1890 in Saint-Elzear, Quebec, was to Rosa Boyce. She was the seventh child, and fifth daughter, born to William Boyce and Anna McMonigal (or McMonigle). John Judge died in 1912, suffering a sudden heart attack while picking up supplies at the local store. Shortly thereafter, Rosa Boyce Judge moved into the home of her two surviving sisters, Catherine and Margaret. Incredibly, these three sisters succumbed within weeks of each other to what some people claim was the earliest versions of the famous Spanish Flu Influenza (they died in 1914). The three sisters were my 1st cousins, three times removed.
Before his marriage to Rosa, John Judge was indeed married to Ms. Plunkett on 21 Feb 1854, Elizabeth Sheridan on 30 Jan 1872, and Rebecca Dunkin (or Tonkin) on 05 Oct 1887. Rebecca was a widow at the time of her marriage to John Judge.
I hope this helps!