Kahl and Gilbert; 1. Capitalist- Prestigious university, investors and heirs, $1 mil+, 1% of pop. 2. Upper Middle-College or university, often with postgraduate study, professionals and upper managers, $125k+, 15% of pop. 3. Lower Middle-High school or college, often apprenticeship, semiprofessionals and lower managers, craftspeople, foremen, $60k, 34% of pop. 4. Working-High school, factory workers, clerical workers, low-paid retail sales, and craftspeople, $36k, 30% of pop. 5. Working Poor-Some high school, laborers, service workers, low-paid salespeople, $19k, 16% of pop. 6. Underclass-Some high school, unemployed and part-time, on welfare, under $12k, 4% of pop.