Question: who died first Arthur Wahl or Glenn T. Seaborg ?

Context paragraphs:
Actinide concept: The actinide concept in nuclear chemistry was first theorized by Glenn T. Seaborg in 1944, resulting in the extension of Dmitri Mendeleev's periodic table of the elements by placing a new actinide series, for elements 89–103, below the lanthanide series.  In later theoretical work, Seaborg proposed the transactinide series spanning elements 104–121 and the superactinide series containing elements 122–153.

Joseph W. Kennedy: Joseph William Kennedy (May 30, 1916 – May 5, 1957) was an American chemist who was a co-discoverer of plutonium, along with Glenn T. Seaborg, Edwin McMillan and Arthur Wahl.  During World War II he was head of the CM (Chemistry and Metallurgy) Division at the Manhattan Project's Los Alamos laboratory, where he oversaw research onto the chemistry and metallurgy of uranium and plutonium.  After the war, he was recruited as a professor at Washington University in St. Louis, where he is credited with transforming a university primarily concerned with undergraduate teaching into one that also boasts strong graduate and research programs.  He died of cancer of the stomach at the age of 40.

Iodine-131: Iodine-131 (I) is an important radioisotope of iodine discovered by Glenn Seaborg and John Livingood in 1938 at the University of California, Berkeley.  It has a radioactive decay half-life of about eight days.  It is associated with nuclear energy, medical diagnostic and treatment procedures, and natural gas production.  It also plays a major role as a radioactive isotope present in nuclear fission products, and was a significant contributor to the health hazards from open-air atomic bomb testing in the 1950s, and from the Chernobyl disaster, as well as being a large fraction of the contamination hazard in the first weeks in the Fukushima nuclear crisis.  This is because I-131 is a major fission product of uranium and plutonium, comprising nearly 3% of the total products of fission (by weight).  See fission product yield for a comparison with other radioactive fission products.  I-131 is also a major fission product of uranium-233, produced from thorium.

Grand Theft Parsons: Grand Theft Parsons is a 2003 film based on the true story of country rock musician Gram Parsons (played by Gabriel Macht), who died of an overdose in 1973.  Parsons and his road manager, Phil Kaufman (Johnny Knoxville), made a pact in life that whoever died first would be cremated by the other in what was then the Joshua Tree National Monument, an area of desert they both loved and cherished.

Glenn T. Seaborg: Glenn Theodore Seaborg ( ; April 19, 1912February 25, 1999) was an American chemist whose involvement in the synthesis, discovery and investigation of ten transuranium elements earned him a share of the 1951 Nobel Prize in Chemistry.  His work in this area also led to his development of the actinide concept and the arrangement of the actinide series in the periodic table of the elements.

First Arthur County Courthouse and Jail: The First Arthur County Courthouse and Jail, was perhaps the smallest court house in the United States, and serves now as a museum.

Ninan Cuyochi: Ninan Cuyochi (1490–1527) the oldest son of Sapa Inca Huayna Capac and was first in line to inherit the Inca Empire; however, he died of smallpox shortly before or after his father's death, bringing about aConflicting factions and the fact that the Spanish chroniclers' accounts stemmed from the winners of the ensuing civil war led to conflicting versions of what actually happened.  Thus, although Huayna Capac named the infant Ninan Cuyochi as his first heir, sources differ as to whether the boy died first, was unacceptable because of an unfavorable divination, or even if Huayna simply forgot that he had named him when asked to confirm the nomination.  In any event a second choice was requested and again sources vary.  He may have named Huáscar half-brother Atahualpa who then refused, or named Huáscar himself, or perhaps even the nobles put forward Huáscar.  Whatever the truth, the result of Huáscar's accession and the dispute over it before and after led to civil war between Huáscar (made Emperor by a faction based in Cuzco) and Atahualpa (backed by leaders who were based in the north with Huayna). §≈≠±±≤ÄãÄ′°°°°°

Curium: Curium is a transuranic radioactive chemical element with symbol Cm and atomic number 96.  This element of the actinide series was named after Marie and Pierre Curie – both were known for their research on radioactivity.  Curium was first intentionally produced and identified in July 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley.  The discovery was kept secret and only released to the public in November 1945.  Most curium is produced by bombarding uranium or plutonium with neutrons in nuclear reactors – one tonne of spent nuclear fuel contains about 20 grams of curium.

Glenn T. Seaborg Medal: The Glenn T. Seaborg Medal was first awarded in 1987 by the University of California, Los Angeles (UCLA), Department of Chemistry and Biochemistry to Nobel Prize–winning chemist Glenn T. Seaborg, a UCLA alumnus.  The purpose of the award is to honor persons who have made exceptional scientific contributions in the fields of chemistry or biochemistry.  It is awarded annually by an executive committee of the UCLA Department of Chemistry and Biochemistry.

Arthur Wahl: Arthur Charles Wahl (September 8, 1917 – March 6, 2006) was an American chemist who, as a doctoral student of Glenn T. Seaborg at the University of California, Berkeley, first isolated plutonium in February 1941.  He also worked on the Manhattan Project.

Supporting paragraphs: Arthur Wahl Glenn T. Seaborg
Answer: Glenn Theodore Seaborg