Here is a random selection of famous first names beginning with H.
Hugh MacDiarmid
[the pen name of Christopher Murray Grieve], (1892-1978), Scottish poet and critic. He is best known for his poem "A Drunk Man Looks at the Thistle".Harold Clayton Lloyd
(1893-1971), American movie producer and comedy actor. He made hundreds of short silent films including "From Hand to Mouth", "Grandma's Boy" and "Safety Last!".Harry Lauder
[Sir], [real name Henry Lauder] (1870 - 1950), Scottish music-hall comedian and singer. Sir Harry made an international career out of his Scottish comedy routines and songs. He wrote many songs including "Roamin' in the Gloamin", "I Love a Lassie" and "Keep Right on to the End of the Road". Henry Wadsworth Longfellow
(1807 - 82), American poet. He wrote many poems including "The Song of Hiawatha" and "Evangeline".Howard Robard Hughes
(1905 - 76), American industrialist, aviator and movie producer. He greatly increased his inherited oil wealth and made several epic flights, including a record round-the-world trip. Gradually he became increasingly eccentric and went into seclusion in 1966.