Andrew Jackson was the seventh President of the United States, serving from 1829 to 1837. Born in 1767 in the frontier settlement of the Waxhaws in South Carolina, Jackson moved to Salisbury, NC in 1784 and received his license to practice law in 1787, beginning his practice in North Carolina's Western District in Washington County (now a part of Tennessee). In October 1788, he moved to Nashville, where he met his wife Rachel. After serving as the major general of the Tennessee militia for twenty years and earning recognition as a military leader in the War of 1812, Jackson was elected to the U. S. Senate in 1823 and to the presidency in 1828. After serving two terms as president, Jackson returned to the Hermitage, his Nashville home, in early 1837. Eight years later, in 1845, Jackson died at his home at the age of 78.

Callender Irvine was born to Revolutionary War General William and Anne (Callender) Irvine near Carlisle, Pennsylvania on January 24, 1775. He attended Dickinson College and briefly read law with Jared Ingersoll of Philadelphia before becoming a surveyor and helping to lay out such Pennsylvania towns as Warren. In 1797, William Irvine granted his son a tract of land in Western Pennsylvania, and Callender Irvine and a freed slave named Tom started Brokenstraw Farm. Irvine was commissioned a Captain of Artillery in the U. S. Army in June of 1798, where he served until resigning in 1801. He married Patience Elliott (about 1775-1852) on December 22, 1801 and the couple moved to Erie, Pennsylvania, where Irvine had been commissioned as an Indian agent to the Six Nations. Their only son, William Armstrong, was born on September 28, 1803. Irvine was later appointed Surveyor of Customs for the Port of Buffalo Creek (now Buffalo, New York) and became Commissary General of the U. S. Army on his father's death in 1804. Callender Irvine died on October 9, 1841 in Philadelphia.