Halberg, Hans-Wilhelm (1963-1987), marine biologist from the University of Kiel in Germany, killed, age 24, with a large group of others in a terrorist attack in Djibouti while waiting to board a three-month expedition of the German research vessel Meteor in the Indian Ocean.

Daniel Hamilton

Hamilton, Daniel (1990-2011), reptile biologist from Purdue University, died, age 21, of heat stroke while volunteering in the Cayman Islands.

Hamilton, W.D. (1936-2000), brilliant evolutionary theorist, after an expedition to war-torn Democratic Republic of Congo, to study the origins of HIV, age 63, of multiple organ failure brought on by malaria.

Harrisson, Tom (1912–1976), British anthropologist and ornithologist, age 64, bus accident in Thailand.

Hasselquist, Fredric(1722–1752), Swedish “apostle” of Linnaeus’s, made extensive collections in the Middle East, died, age 30, near Smyrna, of tuberculosis.

Van hasselt

Hasselt, Johann Coenraad van(1797–1823), Dutch ornithologist, age 26, of an unknown tropical illness in Java.

Hearn, Mike (1972-2005) conservationist, died, age 32, in a surfing accident off Swakopmond, between stints in the field with the Save The Rhino Trust, Northern Namibia.

Helfer, Johann Wilhelm (1810–1840), Czech-born naturalist,  murdered, age 29, by poison dart in the Andaman Islands.

Hellwig, Franz Carl (1861-1889), German botanist, assistant in the Botanic Garden of Breslau 1883-84, later appointed botanist of the German New Guinea Company as Kelana Station, in New Guinea, where he died, age 28, of dysentery.

Hemphill, Henry(1830–1914), American naturalist studying shells, age 84, of arsenic poisoning.

Hemprich, Wilhelm(1796–1825), surgeon in the Prussian army, naturalist, leader of a five-year expedition to Egypt and nearby countries, collecting 3000 plant and 4000 animal species, on which nine team members died, including Hemprich, age 28, probably of malaria, in Eritrea.

Hendee, Russell W.(1899–1929), mammalogist collecting for the Field Museum’s Kelley-Roosevelts Expedition, age 30, of malaria in Vientiane.

Herald, Earl S. (1914-1973), ichthyologist, died, age 59, in a diving accident off Cabo San Lucas.

Hernandez-Camacho, Jorge Ignacio (1935-2002) authority on all things neotropical, died, age 67, from a heart attack while visiting a mangrove swamp near Cartagena, Colombia.  The 3,850 hectare area was later protected and named in his honor Santuario de Fauna y Flora El Corochal “El Mono Hernandez”  Several plant and animal species have also been named in honor of “Mono” or “El Sabio” Hernandez .

Higashi, Masahiko (1954-2000), termite ecologist at Kyoto University, drowned, age  45, when their small boat was caught in a storm during an expedition on the Sea of Cortez.

Higashiguchi, Jenni M. (1981-2011), a University of Missouri ecologist studying infectious diseases in wildlife, was doing fieldwork in the Galapagos when she suddenly became ill and died, age 30, of acute liver failure, due to unknown causes.

Hodgdon, Albion (1909-1976), a botanist who specialized in finding new locations of species in the state of New Hampshire.  His death, age 65, resulted from injuries sustained in a head-on collision with a drunk driver, cutting short his life’s ambition to complete the flora of New Hampshire

Hoffmann, Ralph (1870-1932), botanist and ornithologist, director of the Santa Barbara Museum of Natural History, fell from a cliff on San Miguel Island, California while collecting plants, age 62.

Holden, Edith (1871-1920), British naturalist and  illustrator, most famous for Country Diary of an Edwardian Lady, fell into the River Thames at Kew and drowned, age 49, while collecting blossom from a horse chestnut tree for an illustration.

Hoshino

Hoshino, Michio (1952-1996), celebrated Japanese wildlife photographer, killed, age 44, when a brown bear attacked him in his tent, while he was on assignment in Kurilskoye Lake, Kamchatka, Russia.  A faked photo of the attack circulated on the internet.  A memorial totem pole to Hoshino was recently erected in Sitka, Alaska.

Hovore, Frank T.  (1945-2006), coleopterist, age 61, on a collecting expedition in Ecuador, of a heart attack.

Howell, James C. (19??-1985), an Antioch College biologist, died in a plane crash on an ornithological trip in Antarctica.

Hreblay, Márton (1963-2000), entomologist,  killed in a car accident, age 37, while collecting Lepidoptera (Noctuidae) in northern Thailand.

Hunstein, Carl  (1843-1888), was a German natural history specimen collector specializing in birds and plants, who discovered the Blue Bird of Paradise (Paradisaea rudolphi), among other species. He was killed, age 45, in a tsunami caused when Ritter Island volcano, off the western end of New Britain, collapsed and largely disappeared beneath the sea. The Hunstein Mountains and several bird and plant species are named in his honor.

Hunt, David Bassil (1934- 1985), a British ornithologist, working mainly in the Isles of Scilly, was killed, age 51, by a tiger while leading a tour  in Jim Corbett National Park, India.