I am researching for a friend whose gr-grandma was Catherine Mary Sheehan of Austin, Tx. I believe she was the daughter of Dennis and Katherine O'Brien Sheehan who started their family in Virginia, moved to Austin, TX after the Civil War. I have found a number of their other children [Margaret, John Peter, Bridget, Dennis William, Elizabeth and Julie] in Mt Calvary Cemetery but I cannot seem to locate Dennis sr on census either in Virginia or in Texas. Has anyone been more successful? I also think there is a relationship to the Jeremiah Sheehan family of Austin.