Thaddeus Sobieski Constantine Lowe (August 20, 1832 – January 16, 1913), also known as Professor T. S. C. Lowe, was an American Civil War aeronaut, scientist and inventor. In July 1861 Lowe was appointed Chief Aeronaut of the Union Army Balloon Corps by President Abraham Lincoln. Though his work was generally successful, it was not fully appreciated by all members of the military, and disputes over his operations and pay scale forced him to resign in 1863.Several of the pieces were owned by Frederick Stansbury Haydon who was a US Army officer and military historian. He was born in Towson, MD and received his B.A. from Johns Hopkins University in 1936, and his Ph.D. in 1940. John Hopkins holds a large collection consisting of the research notes, illustrations, and photographs assembled by Haydon for his published work Aeronautics in the Union and Confederate Armies (1941). The collection includes: An extraordinary personal gift, Pocket Barometer, gold toned, 2-3/4” diameter with Lowes initials engraved on the back, “T.S.C.L.” The barometer was manufactured by Wm. E. Stieren (1836-1884), Pittsburg. The barometer is kept in a small hinged box with a not (likely by Haydon) attributing the barometer as a birthday present from his wife Leontine. ... plus, Another amazing personal item, presentation medal, “Grand Army Of The Republic” badge with a r/w/b ribbon from with dangles a 1-3/4” diameter medal of an eagle perching from a tree. On the reverse is the Presentation, “To Thad Lowe Who Flies With The Eagles”. The medal is housed in a leather hinged case. ... plus, Another Grand Army of the Republic, from the pinback badge hangs a r/w/b ribbon, 2-1/2” 4-3/4”, with lettering “LOWE’S AERONAUT, 1861-65”. ... plus, Cabinet card photo of William H. Helme. (On April 19,1861, four days after Lincoln’s initial call for troops, two members of the Rhode Island 1st Regiment (State Militia), James Allen, a veteran New England balloonist, and Dr. William H. Helme, a dentist and balloonist, carried two of Allen’s balloons from Providence, Rhode Island, to Washington. There, on June 9th, they made the United States Army’s first trial captive balloon ascent.). ... plus, A printed photo “A Ballon in Warfare-Prof. Lowe Recognizes Himself ...”, copyroght 1910, Pariot Publishing. ... plus, three books, “Military Ballooning During The Early Civil War”, by Frederick Stansbury Haydon, 1941, 422pp., soft cover, fine. ... plus, “YEAGER, An Autobiography by General Chuck Yeager and Leo Janos”, 1985, 344pp., hardbound. ... plus, “Lincoln’s Flying Spies, Thaddeus Lowe and the Civil War Balloon Corps” by Gail Jarrow, 2010, 109pp., hardbound.