Teacher workshopBiscayne National Park; National Park ServiceTeacher workshop.
Visitors, Harpers Ferry, West Virginia Harpers Ferry National Historical ParkEdward R. Obrien Family. Bldg. 35. Billiionth Visitor Day. Original caption: NHF 2078, Edward R. O'Brien Family, Bldg. 35, Billionth Visitor Day, A. L. Sullivan, Aug. 22, 1962.
Visitors, Harpers Ferry, West Virginia Harpers Ferry National Historical ParkEdward R. O'Brien Family w/J.R. Prentice. Bldg. 9. Billionth Visitor Day. Original caption: NHF 2079, Edward R. O'Brien Family w/ J.R. Prentice, Bldg. 9, Billionth Visitor Day, A. L. Sullivan, Aug. 22, 1962.
Visitors, Harpers Ferry, West Virginia Harpers Ferry National Historical ParkEdward R. O'Brien Family w/ J.R. Prentice. Kaplon Lot. Billionth Visitor. Original caption: NHF 2080, Edward R. O'Brien Family w/ J.R. Prentice, Kaplon Lot, Billionth Visitor Day, A. L. Sullivan, Aug. 22, 1962.
Visitors, Harpers Ferry, West Virginia Harpers Ferry National Historical ParkEdward R. O'Brien Family w/ J.R. Prentice. Kaplon Lot. Billionth Visitor Day. Original caption: NHF 2081, Edward R. O'Brien Family w/ J.R. Prentice, Kaplon Lot, Billionth Visitor Day, A. L. Sullivan, Aug. 22, 1962.