Appropriately the first denomination of the set, the 1-cent stamp of the Louisiana Purchase Exposition Issue features an image of Robert Livingston. Born in 1746, Livingston served as a delegate of New York in the Continental Congress and as a delegate to the Constitution Convention. He administered the oath of office to George Washington in 1789. After Thomas Jefferson's election to the presidency in 1800, Livingston was appointed minister to France. Livingston's efforts culminated in the purchase of the Louisiana Territory. He died in 1813.
The 1-cent Livingston stamp paid the one-cent card rate. It was also used with other denominations to fulfill large weight and destination rates. The Bureau of Engraving and Printing produced 79,779,200 Robert Livingston stamps.