"[Symbol: Right pointing hand.] The managers of Sunday-schools in the eastern district are thus most dutifully informed that on Sabbath-days the school-house belonging to this society, if required for the tuition of colored youth, will be uniformly at their service. _August 29, 3t._" This school was first taught by a Mr. Pierpont, of Massachusetts, a relative of the poet, and after several years was succeeded by a Colored man named John Adams, the first teacher of his race in the District of Columbia. The average attendance of this school was about sixty-five or seventy. MR. HENRY POTTER'S SCHOOL. The third school for Colored children in Washington was established by Mr. Henry Potter, an Englishman, who opened his school about 1809, in a brick building which then stood on the southeast corner of F and Seventh streets, opposite the block where the post-office building now stands. He continued there for several years and had a large school, moving subsequently to what was then known as Clark's Row on Thirteenth Street, west, between G and H streets, north. MRS. HALL'S SCHOOL. During this period Mrs. Anne Maria Hall started a school on Capitol Hill, between the old Capitol and Carroll Row, on First Street, east. After continuing there with a full school for some ten years, she moved to a building which stood on what is now the vacant portion of the Casparis House lot on A Street, close to the Capitol. Some years later she went to the First Bethel Church, and after a year or two she moved to a house still standing on E Street, north, between Eleventh and Twelfth, west, and there taught many years. She was a Colored woman from Prince George's County, Maryland, and had a respectable education, which she obtained at schools with white children in Alexandria. Her husband died early, leaving her with children to support, and she betook herself to the work of a teacher, which she loved, and in which, for not less than twenty-five years, she met with uniform success. Her schools were all quite large, and the many who remember her as their teacher speak of her with great respect. MRS. MARY BILLING'S SCHOOL.