On March 1, 1932, the Lindberghs' first child, 20-month-old Charles Augustus Lindbergh Jr., was kidnapped from their home, Highfields, in East Amwell, New Jersey, outside Hopewell. Arriving at the Lindbergh home police began the first search into the disappearance of young Charles Augustus Lindbergh Jr., there police witnessed two clear sets of footprints outside of the Lindbergh home. One set specifically led southeast towards a ladder that was believed to be used in the abduction. Upon the discovery of intruders, police returned inside the home to begin their initial search of the nursery. Before calling the police Charles Lindbergh uncovered a plain white envelope located on the windowsill. Believing it was a ransom note, Charles left it for police inspection. Expert in crime-scene photography and fingerprints, Corporal Frank Kelly, was a part of the group that was investigating the disappearance of Charles Augustus Lindbergh. After processing the envelope for any evidence revealed a smudged fingerprint which would later be sent to the state official in charge, Major Schoeffel. Inside the envelope was a detailed ransom note from the kidnapper giving the Lindberghs guided instructions for the return of their child.