Who?

parrot
a copycat who does not understand the words or acts being imitated
 
Sir Ronald Ross
British physician who discovered that mosquitos transmit malaria (1857-1932)
 
grocery boy
a delivery boy for groceries
 
conditioner
a trainer of athletes
 
Thomas Hunt Morgan
United States biologist who formulated the chromosome theory of heredity (1866-1945)
 
Darius the Great
king of Persia who expanded the Persian Empire and invaded Greece but was defeated at the battle of Marathon (550-486 BC)
 
wax-chandler
one who deals in wax candles
 
bondsman
a male bound to serve without wages
 
Gloria May Josephine Svensson
United States actress in many silent films (1899-1983)
 
squatter
someone who settles on land without right or title
 
Edward Roscoe Murrow
United States broadcast journalist remembered for his reports from London during World War II (1908-1965)
 
Pueblo
a member of any of about two dozen Native American peoples called `Pueblos' by the Spanish because they live in pueblos (villages built of adobe and rock)
 
Mongolian
a member of the nomadic peoples of Mongolia
 
Henry Norris Russell
United States astronomer who developed a theory of stellar evolution (1877-1957)
 
Berber
a member of an indigenous people of northern Africa
 
Manichaean
an adherent of Manichaeism
 
King Camp Gilette
United States inventor and manufacturer who developed the safety razor (1855-1932)
 
St. John Chrysostom
(Roman Catholic Church) a Church Father who was a great preacher and bishop of Constantinople; a saint and Doctor of the Church (347-407)
 
ump
an official at a baseball game
 
Johannes Peter Muller
German physiologist and anatomist (1801-1858)
 
 List More