| Rec | Mtg# | Year | Authors | Institution | Talk title |
|---|---|---|---|---|---|
| 1 | 989 | 1974 | James V. O'Connor | USGS/Washington Institute of Technology | Backyard geology — A tour of processes illustrated in Rock Creek Park |
| 2 | 1032 | 1978 | Anthony A. Fleming; James V. O'Connor |
Beloit College | DC Piedmont: new evidence from outcrops and construction sites in NW |