| Value |
Category |
| 0 |
Accountants and auditors |
| 1 |
Actors and actresses |
| 2 |
Airplane pilots and navigators |
| 3 |
Architects |
| 4 |
Artists and art teachers |
| 5 |
Athletes |
| 6 |
Authors |
| 7 |
Chemists |
| 8 |
Chiropractors |
| 9 |
Clergymen |
| 10 |
College presidents and deans |
| 12 |
Agricultural sciences |
| 13 |
Biological sciences |
| 14 |
Chemistry |
| 15 |
Economics |
| 16 |
Engineering |
| 17 |
Geology and geophysics |
| 18 |
Mathematics |
| 19 |
Medical sciences |
| 23 |
Physics |
| 24 |
Psychology |
| 25 |
Statistics |
| 26 |
Natural science (n.e.c.) |
| 27 |
Social sciences (n.e.c.) |
| 28 |
Nonscientific subjects |
| 29 |
Subject not specified |
| 31 |
Dancers and dancing teachers |
| 32 |
Dentists |
| 33 |
Designers |
| 34 |
Dieticians and nutritionists |
| 35 |
Draftsmen |
| 36 |
Editors and reporters |
| 41 |
Engineers, aeronautical |
| 42 |
Engineers, chemical |
| 43 |
Engineers, civil |
| 44 |
Engineers, electrical |
| 45 |
Engineers, industrial |
| 46 |
Engineers, mechanical |
| 47 |
Engineers, metallurgical, metallurgists |
| 48 |
Engineers, mining |
| 49 |
Engineers (n.e.c.) |
| 51 |
Entertainers (n.e.c.) |
| 52 |
Farm and home management advisors |
| 53 |
Foresters and conservationists |
| 54 |
Funeral directors and embalmers |
| 55 |
Lawyers and judges |
| 56 |
Librarians |
| 57 |
Musicians and music teachers |
| 58 |
Nurses, professional |
| 59 |
Nurses, student professional |
| 61 |
Agricultural scientists |
| 62 |
Biological scientists |
| 63 |
Geologists and geophysicists |
| 67 |
Mathematicians |
| 68 |
Physicists |
| 69 |
Miscellaneous natural scientists |
| 70 |
Optometrists |
| 71 |
Osteopaths |
| 72 |
Personnel and labor relations workers |
| 73 |
Pharmacists |
| 74 |
Photographers |
| 75 |
Physicians and surgeons |
| 76 |
Radio operators |
| 77 |
Recreation and group workers |
| 78 |
Religious workers |
| 79 |
Social and welfare workers, except group |
| 81 |
Economists |
| 82 |
Psychologists |
| 83 |
Statisticians and actuaries |
| 84 |
Miscellaneous social scientists |
| 91 |
Sports instructors and officials |
| 92 |
Surveyors |
| 93 |
Teachers (n.e.c.) |
| 94 |
Technicians, medical and dental |
| 95 |
Technicians, testing |
| 96 |
Technicians (n.e.c.) |
| 97 |
Therapists and healers (n.e.c.) |
| 98 |
Veterinarians |
| 99 |
Professional, technical and kindred workers (n.e.c.) |
| 100 |
Farmers (owners and tenants) |
| 123 |
Farm managers |
| 200 |
Buyers and department heads, store |
| 201 |
Buyers and shippers, farm products |
| 203 |
Conductors, railroad |
| 204 |
Credit men |
| 205 |
Floormen and floor managers, store |
| 210 |
Inspectors, public administration |
| 230 |
Managers and superintendents, building |
| 240 |
Officers, pilots, pursers and engineers, ship |
| 250 |
Officials and administrators (n.e.c.), public administration |
| 260 |
Officials, lodge, society, union, etc. |
| 270 |
Postmasters |
| 280 |
Purchasing agents and buyers (n.e.c.) |
| 290 |
Managers, officials, and proprietors (n.e.c.) |
| 300 |
Agents (n.e.c.) |
| 301 |
Attendants and assistants, library |
| 302 |
Attendants, physician's and dentist's office |
| 304 |
Baggagemen, transportation |
| 305 |
Bank tellers |
| 310 |
Bookkeepers |
| 320 |
Cashiers |
| 321 |
Collectors, bill and account |
| 322 |
Dispatchers and starters, vehicle |
| 325 |
Express messengers and railway mail clerks |
| 335 |
Mail carriers |
| 340 |
Messengers and office boys |
| 341 |
Office machine operators |
| 342 |
Shipping and receiving clerks |
| 350 |
Stenographers, typists, and secretaries |
| 360 |
Telegraph messengers |
| 365 |
Telegraph operators |
| 370 |
Telephone operators |
| 380 |
Ticket, station, and express agents |
| 390 |
Clerical and kindred workers (n.e.c.) |
| 400 |
Advertising agents and salesmen |
| 410 |
Auctioneers |
| 420 |
Demonstrators |
| 430 |
Hucksters and peddlers |
| 450 |
Insurance agents and brokers |
| 460 |
Newsboys |
| 470 |
Real estate agents and brokers |
| 480 |
Stock and bond salesmen |
| 490 |
Salesmen and sales clerks (n.e.c.) |
| 500 |
Bakers |
| 501 |
Blacksmiths |
| 502 |
Bookbinders |
| 503 |
Boilermakers |
| 504 |
Brickmasons, stonemasons, and tile setters |
| 505 |
Cabinetmakers |
| 510 |
Carpenters |
| 511 |
Cement and concrete finishers |
| 512 |
Compositors and typesetters |
| 513 |
Cranemen, derrickmen, and hoistmen |
| 514 |
Decorators and window dressers |
| 515 |
Electricians |
| 520 |
Electrotypers and stereotypers |
| 521 |
Engravers, except photoengravers |
| 522 |
Excavating, grading, and road machinery operators |
| 523 |
Foremen (n.e.c.) |
| 524 |
Forgemen and hammermen |
| 525 |
Furriers |
| 530 |
Glaziers |
| 531 |
Heat treaters, annealers, temperers |
| 532 |
Inspectors, scalers, and graders, log and lumber |
| 533 |
Inspectors (n.e.c.) |
| 534 |
Jewelers, watchmakers, goldsmiths, and silversmiths |
| 535 |
Job setters, metal |
| 540 |
Linemen and servicemen, telegraph, telephone, and power |
| 541 |
Locomotive engineers |
| 542 |
Locomotive firemen |
| 543 |
Loom fixers |
| 544 |
Machinists |
| 545 |
Mechanics and repairmen, airplane |
| 550 |
Mechanics and repairmen, automobile |
| 551 |
Mechanics and repairmen, office machine |
| 552 |
Mechanics and repairmen, radio and television |
| 553 |
Mechanics and repairmen, railroad and car shop |
| 554 |
Mechanics and repairmen (n.e.c.) |
| 555 |
Millers, grain, flour, feed, etc. |
| 560 |
Millwrights |
| 561 |
Molders, metal |
| 562 |
Motion picture projectionists |
| 563 |
Opticians and lens grinders and polishers |
| 564 |
Painters, construction and maintenance |
| 565 |
Paperhangers |
| 570 |
Pattern and model makers, except paper |
| 571 |
Photoengravers and lithographers |
| 572 |
Piano and organ tuners and repairmen |
| 573 |
Plasterers |
| 574 |
Plumbers and pipe fitters |
| 575 |
Pressmen and plate printers, printing |
| 580 |
Rollers and roll hands, metal |
| 581 |
Roofers and slaters |
| 582 |
Shoemakers and repairers, except factory |
| 583 |
Stationary engineers |
| 584 |
Stone cutters and stone carvers |
| 585 |
Structural metal workers |
| 590 |
Tailors and tailoresses |
| 591 |
Tinsmiths, coppersmiths, and sheet metal workers |
| 592 |
Tool makers, and die makers and setters |
| 593 |
Upholsterers |
| 594 |
Craftsmen and kindred workers (n.e.c.) |
| 595 |
Members of the armed services |
| 600 |
Apprentice auto mechanics |
| 601 |
Apprentice bricklayers and masons |
| 602 |
Apprentice carpenters |
| 603 |
Apprentice electricians |
| 604 |
Apprentice machinists and toolmakers |
| 605 |
Apprentice mechanics, except auto |
| 610 |
Apprentice plumbers and pipe fitters |
| 611 |
Apprentices, building trades (n.e.c.) |
| 612 |
Apprentices, metalworking trades (n.e.c.) |
| 613 |
Apprentices, printing trades |
| 614 |
Apprentices, other specified trades |
| 615 |
Apprentices, trade not specified |
| 620 |
Asbestos and insulation workers |
| 621 |
Attendants, auto service and parking |
| 622 |
Blasters and powdermen |
| 623 |
Boatmen, canalmen, and lock keepers |
| 624 |
Brakemen, railroad |
| 625 |
Bus drivers |
| 630 |
Chainmen, rodmen, and axmen, surveying |
| 631 |
Conductors, bus and street railway |
| 632 |
Deliverymen and routemen |
| 633 |
Dressmakers and seamstresses, except factory |
| 634 |
Dyers |
| 635 |
Filers, grinders, and polishers, metal |
| 640 |
Fruit, nut, and vegetable graders, and packers, except factory |
| 641 |
Furnacemen, smeltermen and pourers |
| 642 |
Heaters, metal |
| 643 |
Laundry and dry cleaning operatives |
| 644 |
Meat cutters, except slaughter and packing house |
| 645 |
Milliners |
| 650 |
Mine operatives and laborers |
| 660 |
Motormen, mine, factory, logging camp, etc. |
| 661 |
Motormen, street, subway, and elevated railway |
| 662 |
Oilers and greaser, except auto |
| 670 |
Painters, except construction or maintenance |
| 671 |
Photographic process workers |
| 672 |
Power station operators |
| 673 |
Sailors and deck hands |
| 674 |
Sawyers |
| 675 |
Spinners, textile |
| 680 |
Stationary firemen |
| 681 |
Switchmen, railroad |
| 682 |
Taxicab drivers and chauffers |
| 683 |
Truck and tractor drivers |
| 684 |
Weavers, textile |
| 685 |
Welders and flame cutters |
| 690 |
Operative and kindred workers (n.e.c.) |
| 700 |
Housekeepers, private household |
| 710 |
Laundressses, private household |
| 720 |
Private household workers (n.e.c.) |
| 730 |
Attendants, hospital and other institution |
| 731 |
Attendants, professional and personal service (n.e.c.) |
| 732 |
Attendants, recreation and amusement |
| 740 |
Barbers, beauticians, and manicurists |
| 750 |
Bartenders |
| 751 |
Bootblacks |
| 752 |
Boarding and lodging house keepers |
| 753 |
Charwomen and cleaners |
| 754 |
Cooks, except private household |
| 760 |
Counter and fountain workers |
| 761 |
Elevator operators |
| 762 |
Firemen, fire protection |
| 763 |
Guards, watchmen, and doorkeepers |
| 764 |
Housekeepers and stewards, except private household |
| 770 |
Janitors and sextons |
| 771 |
Marshals and constables |
| 772 |
Midwives |
| 773 |
Policemen and detectives |
| 780 |
Porters |
| 781 |
Practical nurses |
| 782 |
Sheriffs and bailiffs |
| 783 |
Ushers, recreation and amusement |
| 784 |
Waiters and waitresses |
| 785 |
Watchmen (crossing) and bridge tenders |
| 790 |
Service workers, except private household (n.e.c.) |
| 810 |
Farm foremen |
| 820 |
Farm laborers, wage workers |
| 830 |
Farm laborers, unpaid family workers |
| 840 |
Farm service laborers, self-employed |
| 910 |
Fishermen and oystermen |
| 920 |
Garage laborers and car washers and greasers |
| 930 |
Gardeners, except farm, and groundskeepers |
| 940 |
Longshoremen and stevedores |
| 950 |
Lumbermen, raftsmen, and woodchoppers |
| 960 |
Teamsters |
| 970 |
Laborers (n.e.c.) |
| 997 |
Occupation missing/unknown |
| 999 |
NIU (not in universe) |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.