Charles Augustus Lindbergh, c.1927.

Charles Lindbergh with “Spirit of St. Louis,” c.1927.

Charles Augustus Lindbergh with his plane, c.1927.

Second Lieutenant Charles Augustus Lindbergh in his U.S. Air Force uniform, March 14, 1925.

Charles Augustus Lindbergh and his photo album, Madison, Wisconsin, March, 1922.

Charles Lindbergh with his dog "Dingo," c.1912.

Charles August Lindbergh with his son, Charles Augustus Lindbergh, ca. 1910, when the father was about fifty-one years old and his son was about eight years old. Note the difference in their middle names. The elder Lindbergh is most often referred to as "Sr."

Evangeline Lindbergh with her son Charles Augustus Lindbergh, c.1902.

Lifepak 12 defibrillator manufactured by Medtronic. Photographed on June 12, 2006.

Medtronic Founder Earl Bakken (left) and Medtronic CEO Winston Wallin (right) with an early pacemaker model, 1986. Photographed by Jeffrey Grosscup.