| Official Name: | Horning, Pennsylvania |
| Settlement Type: | Neighborhood |
| Pushpin Map: | Pennsylvania |
| Pushpin Label: | Horning |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Allegheny |
| Subdivision Type3: | Borough |
| Subdivision Name3: | Baldwin |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1037 |
| Coordinates: | 40.3375°N -79.9914°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1177432 |
Horning is a neighborhood in the borough of Baldwin in Allegheny County, Pennsylvania, United States. It was the residence of miners of the Pittsburgh Terminal Railroad and Coal Company #4 Mine, which had a racially integrated workforce, unusual in that era.[1]
Horning was founded at the opening of a coal mine along the West Side Belt Railroad by the Pittsburg Terminal Coal Company around 1903. In 1905, Philip Murray was elected president of the United Mine Workers of America local in Horning.On February 3, 1926, 20 miners were killed in an explosion in this mine.[2] It was the scene of armed labor unrest in 1928.[3] [4] The mine was closed October 5, 1939.[5]