| Rec | Mtg# | Year | Authors | Institution | Talk title |
|---|---|---|---|---|---|
| 1 | 930 | 1970 | William P. Crowley | Maryland Geological Survey | Crystalline rocks around Baltimore: new interpretation in a class region |
| 2 | 1041 | 1978 | William P. Crowley | Maryland Geological Survey | The Appalachian Piedmont: a cross-section near Baltimore |