| P.9480 | J-51 | Johnstown Flood. | nitrate negative ; modern print | 1889 |
| P.9480 | J-67 number assigned | Johnstown Flood. | nitrate negative ; Jennings print ; 2 modern prints | June, 1889 |
| P.9480 | J-40 | Johnstown Flood. 1 year after. | nitrate negative | 1889 |
| P.9480 | J-33 | Johnstown Flood. Bed of Conemaugh (entire village wiped out). | nitrate negative | 1889 |
| P.9480 | J-22 | Johnstown Flood. Bed of South Fork Dam 3 miles long - 90 ft. deep. | nitrate negative | 1889 |
| P.9480 | J-18 | Johnstown Flood. Big cut. Flood rushed through this cut totally destroying railroad & carrying away ballat to bare rocks. (This shows reconstruction) | nitrate negative | 1889 |
| P.9480 | J-02 | Johnstown Flood. Big rocks rolled down valley from South Fork to Johnstown. Rails picked up by rolling rocks and tied in knots. | nitrate negative | 1889 |
| P.9480 | J-60 | [Johnstown Flood. Big Viaduct Bridge over the Little Conemaugh River] | glass plate negative | 1886 |
| P.9480 | J-52 | [Johnstown Flood. Big Viaduct Trestle.] | glass plate negative | 1889 |
| P.9480 | J-10 | Johnstown Flood. Big Viaduct Trestle. Big viaduct was a solid stone arch over the Old Portage Railorad considered to be the most graceful Railroad arch in America. It was swept away, reduced to atoms and here is being replaced by a wooden trestle 1000 feet long and 100 ft. high. Completed in 3 days. | nitrate negative | 1889 |
| P.9480 | J-07 | Johnstown Flood. Big Viaduct Trestle. Here the flood carried away a solid stone bridge considered the finest and strongest arch [bridge] in America. Our train was the first to cross over the Trestle. | nitrate negative ; digital image | 1889 |
| P.9480 | J-35 | Johnstown Flood. Broken dam bank. | nitrate negative | 1889 |
| P.9480 | J-15 | Johnstown Flood. Buttermilk Falls. | nitrate negative | 1889 |
| P.9480 | J-03 | Johnstown Flood. Buttermilk Falls RR. Ten miles of Penna. roadbed from South Fork to Johnstown totally destroyed. Here at Buttermilk Falls three miles of wooden trestle were built and traffic resumed in three days. Fastest railroad construction on record. | nitrate negative | June, 1889 |
| P.9480 | J-62 assumed | Johnstown Flood. Curio shop at Johnstown [Stone] Bridge. | nitrate negative ; Jennings print | 1889 |
| P.9480 | J-56 | [Johnstown Flood. Day Express blocked.] | glass plate negative - damaged | 1889 |
| P.9480 | J-09 | Johnstown Flood. Debris at the Stone Bridge near Cambria Iron Works after the flood, Johnstown, Pa. 1889. | nitrate negative | May 31, 1889 |
| P.9480 | J-11 | Johnstown Flood. Digging out engines from ten foot deep drift. 36 mountain climbing freight locomotives carried from Conemaugh round house 5 miles, entirely destroyed and buried. | nitrate negative | 1889 |
| P.9480 | J-24 | ohnstown Flood. Drift "afire at [Stone] Bridge. | nitrate negative | 1889 |
| P.9480 | J-12 | Johnstown Flood. Drift at [Stone] Bridge. | glass plate negative ; nitrate negative ; 2 modern prints | May 31, 1889 |
| P.9480 | J-42 | Johnstown Flood. Empty dam. | nitrate negative | June 1889 |
| P.9480 | J-61 | Johnstown Flood. Empty dam. | nitrate negative ; 2 modern prints | 1889 |
| P.9480 | J-47 | Johnstown Flood. Empty reservoir, South Fork. | nitrate negative | 1889 |
| P.9480 | J-17 | Johnstown Flood. Empty South Fork Dam June 3, 1889. Broken dam breast. | nitrate negative | June 3, 1889 |
| P.9480 | J-08 | Johnstown Flood. Engine blocked by drift above Johnstown. | nitrate negative ; digital image | June 1889 |
| P.9480 | J-19 | Johnstown Flood. Four Main Line PRR tracks washed away below South Fork. 5000 workmen replacing temporary tracks. | nitrate negative | 1889 |
| P.9480 | J-39 | Johnstown Flood. Harrisburg main line underwater. Made from rear platform of the last train west for 3 days. | nitrate negative | 1889 |
| P.9480 | J-41 | Johnstown Flood. Harrisburg R.R. under water. | nitrate negative | June, 1889 |
| P.9480 | J-54 | [Johnstown Flood. Heart of town wiped out.] | glass plate negative | 1889 |
| P.9480 | J-37 | Johnstown Flood. Here above the big cut just above the Big Viaduct stone arch. 2000 men at work restoring four track roadbed of Penna. R.R. | nitrate negative ; digital image | May 31, 1889 |
| P.9480 | J-38 | Johnstown Flood. Johnstown [Stone] Bridge before the flood. | nitrate negative | 1889 |
| P.9480 | J-45 | [Johnstown Flood. Little Comemaugh Bridge] | nitrate negative | 1889 |
| P.9480 | J-44 | [Johnstown Flood. Little Conemaugh Bridge] | nitrate negative ; digital image | 1889 |
| P.9480 | J-65 | Johnstown Flood. Little Conemaugh Bridge. | nitrate negative | 1889 |
| P.9480 | J-53 | Johnstown Flood. Old Viaduct before & after Flood. | glass plate negative - chipped | May 11, 1887 |
| P.9480 | J-29, J-30, J-31 | Johnstown Flood. Outside dam showing broken dam breast at South Fork Dam. | nitrate negative | June, 1889 |
| P.9480 | J-36 | Johnstown Flood. Outside [South Fork] Dam. | nitrate negative | 1889 |
| P.9480 | J-64 | Johnstown Flood. Penna. R.R. Co. Little Conemaugh Bridge. | nitrate negative | June, 1889 |
| P.9480 | J-27 | Johnstown Flood. Repairing bridge after flood. Solid stone seven arch bridge at Johnstown blocked flood piled up drift. Here 5000 bodies jammed in wreck. | nitrate negative | 1889 |
| P.9480 | J-46 | Johnstown Flood. Roadbed of PRR destroyed below South Fork. Houses washed away. | nitrate negative ; Jennings print | 1889 |
| P.9480 | J-28 | Johnstown Flood. Rocks rolled down valley. Solid stone roadbed of Penna. R.R. Smashed to atoms and rolled down Conemaugh Valley (ten miles). | nitrate negative | 1889 |
| P.9480 | J-21 | ohnstown Flood. Shacks. Over night Johnstown became a "boom town. | nitrate negative | 1889 |
| P.9480 | J-14 | Johnstown Flood. Site of what was once the finest four track railroad in America. | nitrate negative | 1889 |
| P.9480 | J-66 | [Johnstown Flood. Stone Arch Bridge, Johnstown, Pa.] | glass plate negative | June, 1889 |
| P.9480 | J-25 number assigned | [Johnstown Flood. Stone Arch Bridge, Johnstown, Pa.] | glass plate negative | 1889 |
| P.9480 | J-20 | Johnstown Flood. Stone Bridge No. 6 Penna R.R. 1000 feet long 80 feet high replaced by wooden trestle in three days. | nitrate negative | June 1889 |
| P.9480 | J-43 | [Johnstown Flood. Temporary stores in the foreground with a large civic building in the background.] | glass plate negative - chipped | 1889 |
| P.9480 | J-13 | Johnstown Flood . Temporary trestle to replace 5 miles of P.R.R. main line totally destroyed by the flood. | nitrate negative | May 31, 1889 |
| P.9480 | J-01 | Johnstown Flood. Ten miles of P.R.R. roadbed (the finest in U.S.A.) destroyed and rolling stock buried in drift. | nitrate negative | ca. 1889 |
| P.9480 | J-34 | Johnstown Flood. Towards South Fork Dam. | nitrate negative ; modern print | 1889 |
| P.9480 | J-04 | Johnstown Flood. Train derailed at South Fork and left completely coupled on Old Portage track. | nitrate negative | 1889 |
| P.9480 | J-05, J-06 | Johnstown Flood. Train dug up from drift. Thirty-six heavy mountain climbing freight locomotives washed from round house at Conemaugh, rolled five miles, stripped down to boilers, and buried ten feet deep in drift. Here they have been dug up to return to Conemaugh. | nitrate negative | May 31, 1889 |
| P.9480 | J-16 | [Johnstown Flood. Woodvale.] | glass plate negative | 1889 |
| P.9480 | J-32 | [Johnstown Flood. Woodvale, one year after the flood.] | glass plate negative ; digital image | 1890 |
| P.9480 | J-26 | Johnstown Flood. Woodvale wrecked. Woodvale below Conemaugh entirely washed away. PRR destroyed and Woodvale Woolen Mills only structure left standing. | nitrate negative ; digital image | 1889 |
| P.9480 | J-57 | Johnstown Flood. Wrecked passenger locomotive rolled two miles and left in engineer's front yard. | nitrate negative ; 2 modern prints | June, 1889 |
| P.9480 | J-23 | Johnstown Flood. Year after. Site of Johnstown one year after flood. | nitrate negative | May 31, 1890 |