The great general was so pleased with the skill and courage of the young officer that he soon invited him to become his aide and secretary, with the rank of lieutenant-colonel. The commander-in-chief liked to have bright young men around him. Colonel Hamilton was now twenty. Colonel Aaron Burr was a year older. “Light-Horse Harry” Lee was about the same age; and General Lafayette, who was added to General Washington’s staff that summer, was only nineteen. Colonel Hamilton was such a discreet and faithful secretary that it was said, “The pen of the army is held by Hamilton.” In some ways Hamilton’s pen was mightier than his sword.
At Brandywine, where Lafayette was wounded, Hamilton’s horse was shot under him; but he kept at the head of his regiment, on foot. At Valley Forge young Hamilton had occasion to remember the language his mother used in talking with him when he was a baby on the island of Nevis, for he often spoke French with young Marquis de Lafayette. The West Indian colonel was welcome wherever
he went. He was thoughtful and kind to the sick, writing beautiful letters home for disabled and dying soldiers.
One day when the young staff officer was hurrying to meet his chief, Lafayette detained him. Finally breaking away from the friendly young Frenchman, Hamilton found Washington waiting for him. The commander-in-chief said, “Colonel Hamilton, you have kept me waiting these ten minutes! I must tell you, sir, that you treat me with disrespect.”