'There has been housing segregation in Ann Arbor since the first Negroes came here in 1850,' a study committee of the Ann Arbor-Washtenaw Conference on Religion and Race was told last night. Mrs. Dorwin Cartwright used information from a University study to identify present areas with predominantly Negro population and to show that 85 to 93 percent of the city's Negroes have been concentrated in these districts since 1850. The areas identified included (1) northside, (2) Maiden Lane and Canal St., (3) Summit St. area, (4) Beakes-Fourth St. area, (5) hospital area, (6) Green St. area, and (7) Woodlawn district. By 1910, 85 percent of the 515 Negroes lived in the first six areas, in 1930, 93 percent of 914 Negroes lived in the seven districts, and by 1950, 93 per cent of 2171 Negroes lived in the seven areas, Mrs. Cartwright said. "Ann Arbor, being no different from any other city, experienced rapid expansion between 1950 and 1960, adding ... [sic] She described the effect of the residential segregation on the school enrollment as concentrating children in three schools, Jones, Mack, and Perry. She also said that Negroes occupy a large percentage of housing units in the city described by The U.S. Census Bureau as 'deteriorated' or 'dilapidated,' many of them dating to 1860 or 1890. Mrs. Cartwright said that in the 1950s the question was not of integrating housing but of 'succession,' extending the boundaries of the existing Negro areas. The housing pressure in the 1960s is from the growing Negro middle class who want to buy homes throughout the city, she said. The housing study group will continue its discussion at the January meeting of the Conference which is an interfaith group working toward elimination of racial discrimination in all areas of human life.