Hilder Florentina Youngberg Smith (August 10, 1890 – January 11, 1977) was an aerial acrobat, parachutist, and pioneer aviator.

[4] Glenn L. Martin needed a female parachutist to jump into the opening ceremonies of the new Los Angeles Harbor.

On her second jump climbing from a Glenn Martin piloted airplane correcting for drift on a windy April 1914 day, Hilder, a non-swimmer, was startled by seeing the Los Angeles bay below.

Watching the near disaster, her spouse Floyd Smith vowed to redesign the Broadwick static line parachute to safely operate away from the airplane.

Hilder Florentina Smith died on January 11, 1977, in La Mesa, San Diego, California.