Army Spc. Matthew Bolar attended the NFL's NFC championship game in January 2007 with his father, Gordon. A few months later he was killed by an IED. Courtesy of Gordon Bolar hide caption
Gary Knell with his father, David. Courtesy of Gary Knell hide caption
Ellene Montagne decided at 10 she wanted to be a pilot. She's pictured here in 1947 near Fort Belvoir, Va., where she learned how to fly at a local airport. Courtesy of Michael Montagne hide caption
Arsalan and father Dr. Tariq Iftikhar enjoy a family moment during a trip to London in May 2009. Family photo hide caption
NPR's Guy Raz and Robert Siegel chat about Siegel's first days in radio. Friday is the National Day of Listening, a chance to sit down with a loved one, turn on a tape recorder, and ask that person about his life. John Poole/NPR hide caption