Frédéric Boulanger
Frédéric Boulanger (June 1777-?) was a French cellist and professor of singing at the Paris Conservatory.
From Dresden, he was the winner of the first prize in cello at the Conservatory in 1797 and a Professor of cello, attached to the King's Chapel.
He was the father of Ernest Boulanger, a composer of comic operas, husband to mezzo-soprano Marie-Julie Halligner of the Théâtre de l'Opéra-Comique and grandfather to Nadia Boulanger and Lili Boulanger.
He left his family though when Ernest was a small child.
Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s literature who is best known for his book" What is God?" first published in 1989.
His best selling" What is?" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.
Boritzer gained national critical acclaim after" What is God?" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.
The other current books in the" What is?" series include
What is Love?,
What is Death?,
What is Beautiful?,
What is Funny?,
What is Right?,
What is Peace?,
What is Money?,
What is Dreaming?,
What is a Friend?,
What is True?,
What is a Family?,
What is a Feeling?"
The series is now also translated into 15 languages.
Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.
His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.
Boritzer now lives in Venice, California and maintains his publishing office there also.
He has helped numerous other authors to get published through" How to Get Your Book Published!" programs.
Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.
He is also recognized nationally as an erudite speaker on" The Teachings of the Buddha."
Thomas Scott (diver)
Thomas Scott( 1907- date of death unknown) was an English diver.
Fred Bradley (rower)
Frederick Bradley( 1908- date of death unknown) was an English rower.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Albert Thompson (footballer, born 1912)
Albert Thompson( born 1912, date of death unknown) was a Welsh footballer.
Harry Johnson (wrestler)
Harry Johnson( 1903- date of death unknown) was an English wrestler.
Bill Smith (footballer, born 1897)
William Thomas Smith( born 9 April 1897, date of death unknown) was an English professional footballer.
Harry Wainwright (footballer)
Harry Wainwright( born 1899; date of death unknown) was an English footballer.
Marie-Julie Halligner
Marie-Julie Boulanger, née Marie-Julie Halligner (29 January 1786 – 23 July 1850), was a French mezzo-soprano.
She performed her entire career under the stage name Mme Boulanger, appearing in the world premieres of "Le maître de chapelleL'ambassadriceLe domino noir", and "La fille du régiment".

Question: When did Frédéric Boulanger's wife die?
Answer: 23 July 1850