Wizards, Witches and Beings: H
Hagrid,
Sr.
(d. 1941 or 1942)
Father of Rubeus, married Fridwulfa (a giantess). Raised Rubeus alone after Fridwulfa left in 1931. Died 1941-2, during Rubeus' second year at Hogwarts (GF24). Mr. Hagrid had black, crinkly eyes just like his son's (GF24).
Hagrid,
Rubeus 
(b. December 6, 1928)
Gryffindor 1940 - shortly after June 13, 1943 (expelled).
Hogwarts staff; Keeper of
the Keys and Grounds of Hogwarts, as well as the Care of Magical Creatures teacher.
Ancestry: Half-giant; his mother, Fridwulfa,
abandoned him and his wizard father when he was a small child. (More...)
Harkiss, Ciceron 
Gave Ambrosius Flume (owner of Honeydukes) his first job. Favored student of Horace Slughorn, probably a member of the Slug Club (HBP4).
Harper 
Hogwarts student, Slytherin. Mentioned 1996-97. Substituted as Chaser for the Slytherin Quidditch team for Vaisey after the latter was injured during their practice (HBP14).
Harris, Warty
Wizard whose toads were stolen by "Will" and then again by Mundungus Fletcher, who sold them back to Warty (OP5).
Hedwig
Harry found the name for his owl in his first year textbook A History of Magic, so apparently there was a witch or magical being with that name.
Hedwig's name was taken from St. Hedwig, who was a Medieval saint (
JKR).
This was probably St. Hedwig of Andechs (1174-1243) who
was a Polish duchess and is the patron saint of brides, death of children,
difficult marriages and widows (Catholic
Encyclopedia).
Hengist
of Woodcroft 
(medieval; dates unknown)
Founder of Hogsmeade.
Tradition states that Hengist founded the village of Hogsmeade in medieval times after being driven from his home by Muggle persecutors; he supposedly lived there in the Three Broomsticks (fw11, CS/g).
Hengist was a Saxon King of Britain shortly before King Arthur's time, who helped King Vortigern defeat Scot and Pict rebels. Later, he led a rebellion of his own, and eventually founded the county of Kent. Quite what this has to do with wizardry, I don't know, but David Colbert offers a similar suggestion in his book,The Magical Worlds of Harry Potter (--Adrian Allum).
Hereward
Took the Elder Wand from his father Godelot, and left him to die in his own cellar (DH21).
Herpo the Foul
Ancient Greek Dark wizard who was the first known creator of a basilisk. Herpo was a Parselmouth so he could control the great serpent (FB).
Herpo was also the first wizard to successfully create a Horcrux (PC/JKR1).
"herpeton" = Greek for a reptile; from "herpo" = Greek "to creep"
Higgs, Bertie
Hunting buddy of Cormac McLaggen's uncle Tiberius (HBP7).
Higgs, Terence
(b. circa 1975)
Slytherin early 1990s (possibly 1986-92).
Quidditch Seeker 1991-92 school year, replaced by Draco
Malfoy the following school year.
Hipworth,
Glover 
(1742 - 1805)
Inventor of the Pepperup Potion, which cures common colds (fw).
Hobday, Hilliard and Violetta, and Egmont Elvert
A birth announcement for Egmont Elvert was posted in the Daily Prophet, saying he’d been born November 30 to Hilliard and Violetta Hobday (DP).
Hobday, Oakden
Non-canon: this name appears (along with Mylor Sylvanus ) on an early planning chart for Order of the Phoenix in a list as the fifth of the Defense against the Dark Arts Professors. Alastor Moody is not mentioned (JKR).
Hooch,
Rolanda*
Madam Hooch teaches Flying (on broomsticks) to first-years at Hogwarts, and referees most inter-House Quidditch matches. She has short, gray hair and yellow eyes like a hawk (PS9). (More...)
* Madam Hooch's first name comes from the Trading Card Game; it may not be official canon.
Hookum,
Daisy 
(b. 1962)
Wrote bestseller My Life as a Muggle, after giving up magic for a year. Married to celebrity gardener Tilden Toots.
JKR's Wizard of the Month for June 2006 (JKR).
Hooper, Geoffrey
(b. circa 1983)
Tried out for Gryffindor Keeper in autumn 1995 and flew better than Ron Weasley, but was rejected because Angelina said he was a real whiner (OP).
Hopkins, Wayne 
(b. circa 1980)
Hufflepuff?, 1991-
Wayne's name appears in the draft of the class list of Harry's year that Jo displayed during the "Harry Potter and Me" TV interview (HPM). He is Half-blood. Wayne has never appeared in canon, but his name is listed here because he apparently existed in early plans for the books. [Essay on the class list]
Hopkirk, Mafalda 
Responsible for warnings from Improper Use of Magic Office when underage magic is detected (CS, OP2). Hermione impersonated Hopkirk using Polyjuice potion to sneak into the Ministry of Magic and hunt for the locket Horcrux (DH12-13).
Hornby
Brother of Olive. Myrtle haunted his wedding back in the 1940s (GF25).
Hornby, Olive
Hogwarts student, early 1940s
Teased Myrtle about her glasses, but regretted it later when Myrtle was killed and came back to haunt her (CS16).
Horton, Basil
Played for the Falmouth Falcons, along with Randolph Keitch started the Comet Trading Company in 1929. He and Randolph are also the creators of the Horton-Keitch Braking Charm (QA9).
Hufflepuff,
Helga 
(Medieval, precise dates unknown)
One of the founders of Hogwarts some 1000 years ago. According to JKR's website, "Hufflepuff was particularly famous for her dexterity at food-related Charms. Many recipes traditionally served at Hogwarts feasts originated with Hufflepuff." Her Famous Wizard card says "(s)he brought people from different walks of life together to help build Hogwarts and was loved for her charming ways." (fw12) (More...)
Hufflepuff was JKR's Wizard of the Month for May 2007 (JKR).
Hurtz, Grizel
The “agony aunt” of the Daily Prophet, who helps write its advice column (DP).
