Here Drs. Mitchell, Keen, Morehouse, and others used electric current, drugs, and other experiments in pioneering treatment of nerve and related disorders. Closed 1865. (924 Christian St. - 2005) Samuel S. Fleisher Art Memorial - Founded in 1898 as the Graphic Sketch Club; oldest free community art school in the United States. Nearly 5,000 students study art here annually. Alumni include Frank Gasparro, former chief engraver for U.S. Mint, and Louis Kahn, renowned architect. (719 Catharine St. - 2005) South 9th Street Curb Market - One of several curb markets established in the early 20th century to counter high prices and food shortages during WWI. The 9th St. Market has survived despite anti-immigrant sentiments and criticisms regarding sanitary conditions and traffic congestion. Neighborhood businesses offered fresh produce and a variety of ethnic specialty foods. It has evolved from a local community market to become a popular Philadelphia icon. (NE corner of 9th & Christian Sts. - 2007) Engine Company No. 11 - One of 22 fire companies established under the Philadelphia Fire Department in 1871. In 1919, it became a segregated African American unit whose members distinguished themselves through professional service. Desegregated in 1952. (1016 South St. at Alder - 2005) Octavius V. Catto (1839-1871) - An early graduate of the Institute for Colored Youth, Catto, who lived here, was an educator, Union army major, and political organizer. In 1871 he was assassinated by rioters while urging Blacks to vote. His death was widely mourned. (812 South St. - 1992) Robert Mara Adger (1837-1910) - Businessman, activist, bibliophile lived here. Director, Philadelphia Building & Loan Assn., pioneering Black firm. Amassed and donated a major collection of rare books, pamphlets on Blacks, antislavery. Founded Afro-American Historical Society. (823 South St. at Darien St. - 1993) Eddie Lang - "Father of Jazz Guitar." He was born Salvatore Massaro in 1902 and lived in this area as a boy. An accomplished soloist, Lang worked with Joe Venuti, Paul Whiteman, the Dorseys, and others. He was Bing Crosby's accompanist when death cut short Lang's career in 1933. (S. 7th St. just N. of Clymer St. - 1995) Mario Lanza (1921-1959) - The beloved tenor was born here as Alfredo Cocozza. Here as a boy he learned the arias of many operas. Became a radio, concert, record artist. After signing with M-G-M in 1947, he made seven films; had the title role in "The Great