Eugene Broderick and Margaret Leonard

I am looking for any information about my great grandparents. Eugene Broderick was born in County Cork in September, 1848. Margaret Leonard was born in County Cork in October,1855. Margaret left for the USA before Eugene, but both ended up in Ft. Ticonderoga NY. They were married in New York in 1871. They eventually moved to Graceville, Minnesota and had a large farm there, raising crops and Percheron Horses.

Any information would be much appreciated.

Joan Broderick Kohlmeyer