NLRB Stats Archive › Annual Reports › FY1952 › Industrial distribution of union-shop authorization polls, outcome, eligible voters, and valid votes cast, August 22, 1947–October 22, 1951
| Industrial group | Number of polls | Union shop rejected | Employees eligible to vote | Total valid votes | |||
|---|---|---|---|---|---|---|---|
| Industrial group | Total | Affiliation of union authorized to negotiate union-shop | Union shop rejected | Employees eligible to vote | Total valid votes | ||
| Industrial group | Total | A.F.L | C.I O. | Unaffiliated unions | Union shop rejected | Employees eligible to vote | Total valid votes |
| Total | 46,146 | 30,347 | 8,017 | 6,459 | 1,323 | 6,545,001 | 5,548,982 |
| Manufacturing | 30,271 | 18,035 | 7,073 | 4,473 | 690 | 5,458,995 | 4,645,107 |
| Ordnance and accessories | 13 | 8 | 2 | 3 | 0 | 5,839 | 5,052 |
| Food and kindred products | 6,222 | 4,851 | 689 | 505 | 177 | 570,328 | 486,524 |
| Tobacco manufacturers | 65 | 50 | 6 | 9 | 0 | 14,977 | 13,285 |
| Textile-mill products | 1,548 | 298 | 1,023 | 215 | 12 | 391,754 | 345,073 |
| Apparel and other finished products made from fabrics and similar material | 753 | 477 | 247 | 22 | 7 | 218,112 | 199,855 |
| Lumber and wood products | 2,129 | 1,457 | 573 | 32 | 67 | 170,927 | 144,687 |
| Furniture and fixtures | 1,131 | 886 | 154 | 65 | 26 | 92,911 | 81,368 |
| Paper and allied products | 1,299 | 1,030 | 167 | 84 | 18 | 226,236 | 198,533 |
| Printing, publishing, and allied industries | 1,746 | 1,357 | 181 | 172 | 36 | 95,029 | 83,235 |
| Chemicals and allied products | 1,214 | 838 | 237 | 112 | 27 | 123,524 | 104,787 |
| Products of petroleum and coal | 369 | 154 | 173 | 24 | 18 | 50,686 | 41,419 |
| Rubber products | 272 | 70 | 185 | 12 | 5 | 138,458 | 109,631 |
| Leather and leather products | 568 | 368 | 131 | 58 | 11 | 101,836 | 89,382 |
| Stone, clay, and glass products | 1,361 | 1,069 | 176 | 93 | 23 | 210,675 | 177,802 |
| Primary metal industries | 2,069 | 1,124 | 642 | 259 | 44 | 799,751 | 648,343 |
| Fabricated metal products (except machinery and transportation equipment) | 2,913 | 1,604 | 706 | 545 | 58 | 362,627 | 315,917 |
| Machinery (except electrical) | 2,936 | 699 | 806 | 1,362 | 69 | 506,889 | 437,762 |
| Electrical machinery, equipment, and supplies | 1,003 | 503 | 199 | 281 | 20 | 294,800 | 250,047 |
| Transportation equipment | 1,168 | 336 | 450 | 345 | 37 | 924,095 | 772,377 |
| Aircraft and parts | 137 | 31 | 39 | 58 | 9 | 107,872 | 90,393 |
| Ship and boat building and repairing | 211 | 110 | 54 | 39 | 8 | 55,924 | 45,232 |
| Automotive and other transportation equipment | 820 | 195 | 357 | 248 | 20 | 760,299 | 636,752 |
| Professional, scientific, and controlling instruments | 365 | 138 | 123 | 94 | 10 | 57,309 | 51,069 |
| Miscellaneous manufacturing | 1,127 | 718 | 203 | 181 | 25 | 102,232 | 88,959 |
| Agriculture, forestry, and fisheries | 5 | 4 | 0 | 1 | 0 | 64 | 58 |
| Mining | 332 | 160 | 108 | 54 | 10 | 44,859 | 36,681 |
| Metal mining | 90 | 12 | 65 | 10 | 3 | 28,218 | 23,497 |
| Coal mining | 31 | 4 | 2 | 25 | 0 | 982 | 872 |
| Crude petroleum and natural gas production | 35 | 13 | 17 | 1 | 4 | 6,511 | 4,620 |
| Nonmetallic mining and quarrying | 176 | 131 | 24 | 18 | 3 | 9,148 | 7,692 |
| Construction | 466 | 392 | 7 | 46 | 21 | 24,786 | 20,208 |
| Wholesale trade | 4,111 | 3,360 | 282 | 295 | 174 | 133,896 | 118,768 |
| Retail trade | 3,641 | 2,567 | 247 | 630 | 197 | 239,957 | 201,544 |
| Finance, insurance, and real estate | 1,546 | 1,508 | 14 | 16 | 8 | 30,882 | 26,347 |
| Transportation, communication, and other public utilities | 4,739 | 3,712 | 202 | 636 | 189 | 542,736 | 439,896 |
| Highway passenger transportation | 383 | 277 | 12 | 77 | 17 | 44,592 | 36,279 |
| Highway freight transportation | 2,062 | 1,688 | 17 | 258 | 99 | 85,270 | 72,655 |
| Water transportation | 181 | 117 | 29 | 27 | 8 | 21,376 | 16,663 |
| Warehousing and storage | 811 | 667 | 45 | 67 | 32 | 30,616 | 26,967 |
| Other transportation | 124 | 101 | 8 | 12 | 3 | 70,330 | 59,361 |
| Communication | 691 | 535 | 26 | 109 | 21 | 124,552 | 92,564 |
| Heat, light, power, water, and sanitary service | 487 | 327 | 65 | 86 | 9 | 166,000 | 135,401 |
| Services | 1,035 | 609 | 84 | 308 | 34 | 68,826 | 60,373 |
303 of 310 figures sit in a row or column sum that works out. 1 cell breaks a sum: 'Transportation, communication,', column 8: prints 439,896, rows 'Highway passenger tr' to 'Heat, light, power, ' add to 439,890.
p. 319. Eight columns: stub, then "Total", "A.F.L", "C.I O.", "Unaffiliated unions" (the first four under the spanner "Number of polls"), then three tall single headings "Union shop rejected", "Employees eligible to vote", "Total valid votes". Heading punctuation: the affiliation headings are printed as "A.F.L" (no final period) and "C.I O." (period after the C, none after the I); the scan is degraded there and the intended forms are almost certainly "A. F. L." and "C. I. O.". Transcribed as they appear. Arithmetic checks: every cross-total reconciles exactly except one. In the "Total valid votes" column, the seven detail lines under "Transportation, communication, and other public utilities" (36,279 + 72,655 + 16,663 + 26,967 + 59,361 + 92,564 + 135,401) sum to 439,890, while the section line is printed as 439,896 — a difference of 6. The section figure 439,896 is the one consistent with the grand total of 5,548,982, so the error is likely a misprint or a misread digit in one of the seven detail cells; I could not resolve which at this resolution. All detail cells are transcribed as printed. All other checks pass: the poll columns sum correctly for Total, Manufacturing, Transportation equipment, Mining and the transportation block; "Employees eligible to vote" reconciles throughout; and "Total valid votes" reconciles for Manufacturing and the grand total. Indentation note: "Retail trade" and "Finance, insurance, and real estate" are printed with deeper indentation than "Construction" and "Wholesale trade" even though all four are major-division lines; labels are kept as printed.
Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Read by claude-opus-5 (effort max, prompt extract_v1) from the 300-dpi scan; stitched by page. Updated October 2026.