Wikia

Bill Ollerton
Biographical information
Born	Prior to 1926
Physical information
Species	Human
Gender	Male
Family information
Family members	Barnaby Ollerton (brother) ; Bob Ollerton (brother) ; Gifford Ollerton (possibly) ;
Affiliation
Occupation	Broom-maker
Loyalty	Ollerton family

Bill Ollerton was a wizard who, along with his brothers Barnaby and Bob Ollerton, founded the Cleansweep Broom Company in 1926.^[1]

Appearances

↑ Quidditch Through the Ages (real) - Chapter 9 (The Development of the Racing Broom)

Bill Ollerton

Biographical information
Born	Prior to 1926
Physical information
Species	Human
Gender	Male
Family information
Family members	Barnaby Ollerton (brother) Bob Ollerton (brother) Gifford Ollerton (possibly)
Affiliation
Occupation	Broom-maker
Loyalty	Ollerton family