I am the daughter of David Joe McIlrath, he is the son of William and Lora. I know that either William's father or grandfather was one of four brothers that came from Ireland. One of the brothers had a dairy farm in Harrisburg, Illinois. There are several decendants left in this area. My daughter wants to know more about her heritage and would one day love to travel to Ireland. If anyone has any info I would love to know more. I do have a picture of my grandfather, but he died when my dad was a teenager, so I never met him. We have a family reunion every August and with it just around the corner I would like to have some new information to pass along. Thank you in advance for any help.