Hal Downey

{{Short description|American hematologist (1877–1959)}}

{{hematology-stub}}

Hal Downey (1877–1959){{cite journal |author=Vercellotti GM |title=Hal Downey, Ph.D. (1877-1959): "Renaissance hematologist" |journal=J. Lab. Clin. Med. |volume=110 |issue=3 |pages=373–4 |date=September 1987 |pmid=3302084 }} was an American hematologist.{{cite book |author1=Whitworth, Judith A. |author-link=Judith Whitworth |author2=Firkin, Barry G. |title=Dictionary of medical eponyms |publisher=Parthenon Pub |location=New York |year=1996 |pages=[https://archive.org/details/dictionaryofmedi0000firk/page/98 98] |isbn=1-85070-333-7 |url-access=registration |url=https://archive.org/details/dictionaryofmedi0000firk/page/98 }}

In 1923, he contributed to the characterization of reactive lymphocytes, which are sometimes called "Downey cells".{{cite web |url=http://www.clt.astate.edu/wwilliam/unit_03.htm |title=CLS_3223_Unit 03_WBC |access-date=2009-03-07 |archive-url=https://web.archive.org/web/20090130012318/http://www.clt.astate.edu/wwilliam/unit_03.htm |archive-date=2009-01-30}}