Rebecca Young's daughter Mary Young Pickersgill (1776–1857) made the flag of 15 stars and stripes in 1813, begun at her house and finished on the floor of a nearby brewery, delivered to the commander of the fort the year before the British attack of September 12–14, 1814, on Fort McHenry in Baltimore, during the War of 1812, (receiving a government-issued receipt for the work of two flags, a large "garrison flag" and a smaller "storm flag"), then seen by Francis Scott Key (1779–1843) and which inspired him to write the poem which later became the national anthem, "The Star-Spangled Banner". Pickersgill's small 1793 rowhouse is still preserved in East Baltimore's Old Town neighborhood at East Pratt and Albemarle Streets and is known as the "Flag House &amp; Star-Spangled Banner Museum". Occasionally over the decades, there has been some controversy and disagreement between the relative merits and historical accuracies of the two flag-making traditions and historical sites in Philadelphia and Baltimore. It is thought that Ross's only contribution to the flag design was to change the 6-pointed stars to the easier 5-pointed stars. Scholars, however, accept the claim by Francis Hopkinson—a member of the Continental Congress who designed most of the elements of the Great Seal of the United States—that he created designs for the early American flag. Hopkinson submitted letters to Congress in 1780 requesting payment for his designs. Hopkinson was the only person to make such a claim in the Revolutionary War era.