My gg-grandfather was Charles Negus Carroll, s/o Patrick, s/o James O'Carroll b. 1768 Armagh, IRL
Patrick, b. 1789 St. Johns, Newfoundland was married to Nancy Negus in 1806.
Charles and brothers Patrick and William immigrated to Utah in 1854.
I'd be interested in more info on your Minnie & Zachary.