Donald Alfred Sibley of Treasure Island, Florida, passed suddenly on March 29, 2021. | Father of Suzanne Sibley Greer (Daniel) of Watkinsville, GA, Timothy Sibley (Evelyn) of Newport Beach, CA, and John Sibley (Shayne) of Chatham, MA. | Grandchildren Emilee Greer Hain (Aldin), Derek and Bennett Greer, Christian and Emma Sibley, Nick McCarthy | Funeral to be held on May 28, 2021 in St. Petersburg, FL. | A recorded Catholic Mass will be dedicated to Don on April 10,2021 from Hemer, Germany. It can be viewed on YouTube- search "Vitus Hemer".