Lawrence, age 67, of Windsor, Colorado, passed away May 8, 2011. Lawrence was born on March 4, 1944 in Omaha, Nebraska to John and Leona O'Brien and married to Karen Hein in 1965. He retired in 1997 as Financial Director after 30 years at Poudre Valley Hospital in Fort Collins, Colorado. He is survived by his sons and their families - Jeff, Tarren, Ellie and Lindsey of Centennial, Colorado, and Steve, Aubrey, Trevor, Conor and Emma of Aurora, Colorado. Lawrence was preceded in death by his wife Karen in January of 2010. Funeral Mass to be held at 11:00 a.m., Friday May 13, 2011, at Our Lady of the Valley Catholic Church, 1250 7th Street, in Windsor, Colorado. Interment follows at Eden Valley Resthaven Cemetery, 8426 South Highway 287, Fort Collins, Colorado. Memorial donations may be made in Lawrence's name to Our Lady of the Valley Catholic Church, 1250 7th Street, Windsor, Colorado 80550. Please share your memories of Lawrence and condolences with his family by selecting the ""sign guestbook"" button below.