I am interested in any information about my great-grandfather, William Gallahan. He was born on October 14, 1832 and was killed on September 7, 1879 in Washington County, Indiana. William was a Justice of the Peace and was shot on the road by a Tom Joseph. William married Nancy Jane Cornwell and they had seven children, Lydia Ann-1860, Mary Ellen-1861, Alice Lora-1864 (my grandmother), Wm. Harrison-1867, Mike Artieburn-1871, John Leland-1869, Patrick Henry-? .William had a sister, Mary B. Gallahan, who married Wm. T. Cornwell. It is my belief that William and Mary B. immigrated from Ireland as my grandmother used to tell a story of her grandfather shocking his own corn in Ireland the summer before he died at the age of 114. Any information will be appreciated.