Workers building skylights for the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Workers load materials onto the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Workers inspect the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Propeller of U.S. Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The main generator of the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
A section in the galley on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Spud winch assembly on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Hauling winch assembly on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The ladder driving unit on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The dredge pump engine on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The dredge pump on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The main switchboard of the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Instrument panel on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
The main generating engine on the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Propelling motors of the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Spud hoist winches of the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Pilot house on board the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Hauling and ladder hoisting winches of the Dredge "William A. Thompson" in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Ladder well and trunion castings of the Dredge "William A. Thompson" as it is being constructed in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
View of dredge pump and engine foundation of the Dredge "William A. Thompson" as it is being constructed in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
View of the stern showing transom and deck of the Dredge "William A. Thompson" as it is being constructed in the Dravo shipyards in Pittsburgh, Pennsylvania. The dredge is a cutter-head dredge used on the Upper Mississippi and tributaries from 1937 to 2005. It is named for "William A. Thompson" (1864-1925), an engineer with the U.S. Army Corps stationed in Fountain City in 1896 and charged with river improvements on the Upper Mississippi.
Dr. Jean Piccard is inflating one of the 80 balloons which he planned to use in his ascent. He is assisted by Elden Olson, University of Minnesota aeronautical student. Hundreds of spectators gathered to watch this rehearsal of the ground crew on July 7, 1935 at Soldiers Field, Rochester, Minnesota. Dr. Jean Piccard was a University of Minnesota physicist and aeronautical engineer who believed it was possible to ascend into the stratosphere using many small cluster balloons rather than one large balloon. The experimental flight was sponsored by the Rochester Kiwanis Club and supported by local residents and students.
Dr. Jean Piccard is installing a radio in the Pleiades prior to his historic balloon flight. Dr. Jean Piccard was a University of Minnesota physicist and aeronautical engineer who believed it was possible to ascend into the stratosphere using many small cluster balloons rather than one large balloon. The experimental flight was sponsored by the Rochester Kiwanis Club and supported by local residents and students.
Dr. Jean Piccard is posed by a Lincoln-Zephyr automobile. This photo was later used in an advertisement for Motor Sales & Service Company that appeared in the Rochester Post-Bulletin newspaper on July 19, 1937. Dr. Jean Piccard was a University of Minnesota physicist and aeronautical engineer who believed it was possible to ascend into the stratosphere using many small cluster balloons rather than one large balloon. The experimental flight from Soldiers Field in Rochester, Minnesota was sponsored by the Rochester Kiwanis Club and supported by local residents and students.