Chapman Grant (March 27, 1887 – January 5, 1983) was an Americanherpetologist,historian, andpublisher. He was the last living grandson ofUnited States PresidentUlysses S. Grant.^[1]

He was married and had two children, one of whom survived him, his only son Ulysses S. Grant V.

Chapman Grant was born inSalem Center,New York, the son ofJesse Root Grant II, the youngest son of the 18thPresident of the United StatesUlysses S. Grant. In 1892 he moved toSan Diego with his parents. As a child, he spent time at theCalifornia Academy of Sciences, where he developed his interest in science. He graduated fromWilliams College in 1910. He became the assistant curator of entomology at the Children's Museum of theBrooklyn Institute of Arts and Sciences in September 1913. In November 1913, he left the museum for a military career beginning on the Mexican border. He was commissioned a 2nd Lieutenant in the 14th U.S. Cavalry. He married Mabel Glenn Ward in 1917. He continued his scientific studies while in the Army. When he was assigned as commandant of theReserve Officers' Training Corps atthe University of Wichita in the 1930s, he wrote scientific papers on herpetology and was curator at the Arkansas Valley Museum and Historical Society. He retired with a rank ofmajor.

In the 1930s and 1950s several expeditions for theSan Diego Natural History Museum and theIllinois Museum of Natural History led him to the study of theCaribbean herpetofauna where he described fifteen newtaxa, including theblue iguana, thecotton ginner gecko,Gaige's dwarf gecko,Klauber's dwarf gecko,Nichols' dwarf gecko,Roosevelt's dwarf gecko,Townsend's dwarf gecko,Cook's anole, theCulebra Island giant anole,Cochran's croaking gecko, theweb-footed coqui,Cook's robber frog, and thewhistling coqui.

TwoWest Indian snakes are named in his honor:Chilabothrus granti andTyphlops granti.^[2]

In 1932 he established the scientific publicationHerpetologica, the quarterly journal of theHerpetologists' League, an association of several notable herpetologists in the US, which he co-founded in 1936. He was also the publisher of a second magazine - Scientists Forum.

In 1982 the Major Chapman Grant Hall of Ecology in theSan Diego Natural History Museum inBalboa Park was named in honor of him. In 1983 he died at the age of 95 in a nursing home atEscondido, California. He left one son, Ulysses S. Grant V (September 21, 1920 – March 7, 2011).^[3][4]

• (1935). "Secondary sexual differences and notes on the mud turtleKinosternon subrubrum in northern Indiana".American Midland Naturalist16 (5): 798–800.
• (1935). "Natrix sipedon sipedon in central Indiana, its individual and sexual variation".American Midland Naturalist16 (6): 921–931.
• (1937). "Herpetological notes from central Kansas".American Midland Naturalist18 (3): 370–372.
• (1940). (with W. Gardner Lynn). "The Herpetology of Jamaica".Bull. Inst. Jamaica Sci., Series 1: 1–148.
• (1960). "Differentiation of the two southwestern tortoises (genusGopherus), with notes on their habits".Trans. San Diego Nat. Hist. Soc.12 (27): 441–448.

• Tanager Expedition

• Obituary, Los Angeles Times, January 17, 1983, p. C4.

• Web site of the Herpetologists' League.https://www.herpetologistsleague.org/en/index.php.

• 1887 births
• 1983 deaths
• American magazine publishers (people)
• 20th-century American zoologists
• 20th-century American historians
• United States Army officers
• Writers from San Diego
• United States Army personnel of World War I
• Williams College alumni
• American herpetologists
• Ulysses S. Grant
• Grant family
• Tanager Expedition
• People from Escondido, California
• People from North Salem, New York
• Scientists from New York (state)

• Articles with short description
• Short description matches Wikidata
• Articles with hCards
• Zoologists with author abbreviations