NLRB Stats Archive › Annual Reports › FY1948 › Industrial distribution of unfair labor practice and representation cases received during the fiscal year 1948
| Industrial Group | All cases | Unfair labor practice cases | Representation cases | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Industrial Group | All cases | NLRA C | CA | CB | CC | CD | NLRA R | RC | RM | RD |
| Total | 10,636 | 296 | 2,553 | 438 | 243 | 68 | 643 | 5,478 | 459 | 458 |
| Manufacturing | 6,996 | 224 | 1,725 | 209 | 87 | 14 | 463 | 3,674 | 288 | 312 |
| Food and kindred products | 1,072 | 33 | 304 | 37 | 27 | 5 | 60 | 491 | 61 | 54 |
| Tobacco manufacturers | 17 | 1 | 2 | 1 | 0 | 0 | 0 | 11 | 2 | 0 |
| Textile-mill products | 416 | 11 | 152 | 10 | 2 | 0 | 36 | 161 | 19 | 25 |
| Apparel and other finished products made from fabrics and similar materials | 325 | 9 | 126 | 38 | 18 | 0 | 14 | 84 | 22 | 14 |
| Lumber and wood products | 443 | 12 | 91 | 11 | 7 | 2 | 46 | 240 | 22 | 12 |
| Furniture and fixtures | 234 | 18 | 46 | 5 | 2 | 0 | 18 | 134 | 4 | 7 |
| Paper and allied products | 235 | 4 | 41 | 3 | 4 | 1 | 23 | 148 | 5 | 6 |
| Printing, publishing, and allied industries | 268 | 8 | 52 | 23 | 8 | 3 | 14 | 141 | 9 | 10 |
| Chemicals and allied products | 350 | 7 | 57 | 6 | 0 | 1 | 29 | 224 | 13 | 13 |
| Products of petroleum and coal | 135 | 0 | 17 | 5 | 0 | 0 | 6 | 94 | 4 | 9 |
| Rubber products | 70 | 2 | 15 | 2 | 0 | 0 | 7 | 40 | 0 | 4 |
| Leather and leather products | 160 | 4 | 32 | 4 | 1 | 0 | 7 | 99 | 8 | 5 |
| Stone, clay, and glass products | 282 | 7 | 67 | 7 | 3 | 1 | 22 | 151 | 9 | 15 |
| Primary metal industries | 367 | 7 | 110 | 8 | 2 | 0 | 16 | 184 | 14 | 26 |
| Fabricated metal products (except machinery and transportation equipment) | 537 | 27 | 97 | 11 | 1 | 0 | 40 | 319 | 22 | 20 |
| Machinery (except electrical) | 868 | 35 | 206 | 9 | 4 | 0 | 54 | 486 | 33 | 41 |
| Electrical machinery, equipment and supplies | 357 | 7 | 74 | 16 | 5 | 0 | 21 | 210 | 13 | 11 |
| Transportation equipment | 500 | 26 | 146 | 8 | 1 | 1 | 31 | 253 | 10 | 24 |
| Aircraft and parts | 137 | 2 | 83 | 0 | 0 | 0 | 5 | 38 | 1 | 8 |
| Ship and boat building and repairing | 84 | 6 | 14 | 4 | 0 | 1 | 9 | 39 | 3 | 8 |
| Automotive and other transportation equipment | 279 | 18 | 49 | 4 | 1 | 0 | 17 | 176 | 6 | 8 |
| Professional, scientific, and controlling instruments | 94 | 2 | 9 | 1 | 0 | 0 | 7 | 65 | 3 | 7 |
| Miscellaneous manufacturing | 266 | 4 | 81 | 4 | 2 | 0 | 12 | 139 | 15 | 9 |
| Agriculture, forestry, and fisheries | 14 | 0 | 4 | 0 | 1 | 0 | 1 | 8 | 0 | 0 |
| Mining | 213 | 7 | 28 | 16 | 10 | 0 | 28 | 104 | 12 | 8 |
| Metal mining | 45 | 1 | 2 | 1 | 0 | 0 | 1 | 39 | 0 | 1 |
| Coal mining | 43 | 3 | 3 | 15 | 9 | 0 | 4 | 2 | 6 | 1 |
| Crude petroleum and natural gas production | 49 | 2 | 10 | 0 | 0 | 0 | 11 | 20 | 2 | 4 |
| Nonmetallic mining and quarrying | 76 | 1 | 13 | 0 | 1 | 0 | 12 | 43 | 4 | 2 |
| Construction | 341 | 4 | 50 | 47 | 45 | 28 | 3 | 151 | 11 | 2 |
| Wholesale trade | 657 | 12 | 138 | 11 | 19 | 1 | 26 | 358 | 49 | 43 |
| Retail trade | 635 | 7 | 111 | 59 | 21 | 3 | 28 | 342 | 43 | 21 |
| Finance, insurance, and real estate | 174 | 0 | 79 | 4 | 0 | 0 | 4 | 80 | 6 | 1 |
| Transportation, communication, and other public utilities | 1,133 | 27 | 287 | 65 | 40 | 8 | 76 | 545 | 31 | 54 |
| Highway passenger transportation | 115 | 4 | 35 | 7 | 3 | 1 | 3 | 51 | 6 | 5 |
| Highway freight transportation | 304 | 9 | 123 | 11 | 23 | 3 | 9 | 104 | 9 | 13 |
| Water transportation | 139 | 1 | 20 | 24 | 5 | 0 | 34 | 53 | 0 | 2 |
| Warehousing and storage | 146 | 2 | 31 | 9 | 4 | 2 | 5 | 73 | 9 | 11 |
| Other transportation | 54 | 2 | 12 | 4 | 0 | 0 | 1 | 29 | 1 | 5 |
| Communication | 245 | 5 | 45 | 9 | 4 | 0 | 16 | 152 | 5 | 9 |
| Heat, light, power, water, and sanitary services | 130 | 4 | 21 | 1 | 1 | 2 | 8 | 83 | 1 | 9 |
| Services | 473 | 15 | 131 | 27 | 20 | 14 | 14 | 216 | 19 | 17 |
390 of 390 figures sit in a row or column sum that works out.
p. 110. Eleven columns: stub, "All cases", five unfair-labor-practice columns (NLRA C, CA, CB, CC, CD) and four representation columns (NLRA R, RC, RM, RD). "All cases" and the stub heading are tall single headings spanning both heading levels, so each is repeated in both. Arithmetic cross-check (used only to confirm doubtful glyphs, nothing was altered): the nine division rows (Manufacturing, Agriculture, Mining, Construction, Wholesale trade, Retail trade, Finance, Transportation/communication, Services) sum exactly to the printed Total row in all ten numeric columns; the 20 Manufacturing sub-rows sum exactly to the Manufacturing row in all ten columns; the four Mining sub-rows, the three Transportation-equipment sub-rows and the seven Transportation/communication sub-rows likewise match their own subtotals in every column. No printed figure appears to be a misprint. Doubtful glyphs resolved by that check: Manufacturing / NLRA R prints with a broken final digit that could read 463 or 465; the column sums confirm 463. Finance, insurance, and real estate / RM is a smudged digit with a stray ink blot printed just above it in the same cell; the RM column sum confirms the value is 6 and the blot is a scanner artifact, not a footnote marker. Other scan artifacts, not transcribed: a stray mark resembling an opening parenthesis after the "Unfair labor practice cases" spanner heading; a small tick inside the NLRA R column just below the heading rule and above the Total row; stray specks beside Apparel/CD (0), Products of petroleum and coal/RC (94), Stone clay and glass/RD (15), Primary metal industries/RC (184), Metal mining/RD (1), Water transportation/RD (2), Highway passenger transportation/RC (51) and Heat light power/CB (1). All footnote markers on the headings are raised 1 and 2 as recorded. The table body ends with "Services" at the foot of the page, immediately above the footnotes, so nothing is cut off by the crop.
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.