This third part of the 1981-82 report of the National Survey of Salaries and Wages in Public Schools examines salaries and wages actually paid nonprofessional school personnel in 1,095 public school systems. Data on five clerical positions as well as teacher aides, custodians, cafeteria workers, and bus drivers are included. Lowest, highest, and average hourly wage rates or yearly salaries paid employees in each of these positions are considered. The salary data for each position are presented and analyzed according to three basic classifications: school system size (measured by enrollment), per-pupil expenditure levels, and geographic region. In addition to summary analyses of the data, the report contains a tabular listing of specific salary and wage data supplied by each reporting school system. (Author/MLF)