"The introduction of the vaccine to the New World took place in Trinity, Newfoundland, in 1798 by Dr. John Clinch, boyhood friend and medical colleague of Jenner.[63][64] The first smallpox vaccine in the United States was administered in 1799."

Washington died in 1799 (retired in 1797).

She shouldn't have slept through school.

The smallpox vaccine did not come to North America until 1798 (Newfoundland, now Canada): Washington retired in 1797.

She shouldn't have slept through school.