Henry Reynolds Breck is listed as Managing Partner at Heronetta Management, L.P. on SEC Form ADV.
Form ADV reports a beneficial ownership band of Over 75%.
| Title | Managing Partner |
| Ownership | Over 75% |
| Control person | Yes |
| Since | 2007 |
| Title | Managing Member |
| Ownership | Over 75% |
| Control person | Yes |
| Since | 2008 |