In Wharton, a historic school is transforming into much-needed affordable housing while honoring its groundbreaking past. The 1935 building at 500 Abell Street, once Stephen F. Austin Elementary and later Minnie Mae Hopper, was one of the last “Little Schools of the 400” — a 1950s program that taught young Mexican American kids basic English and even inspired Head Start. It also gained fame for early desegregation efforts. Now, developers are converting it into 34 modern apartments, preserving the historic exterior and adding a museum classroom. Construction ramps up soon.