Question: What is the date of birth of Xavier Tanner's father?

Knowledge 1: Xavier Tanner
Xavier Tanner (born 2 May 1956) is a former Australian rules footballer who played with North Melbourne and Melbourne in the Victorian Football League (VFL).A centreman, Tanner was recruited to the VFL from Wodonga in the Ovens & Murray Football League.He played in North Melbourne's 1977 premiership side and their losing grand final the following season.After managing exactly 100 games he joined his old coach Ron Barassi at Melbourne in 1984 and spent the last two seasons of his career with them.Tanner is currently the Assistant Principal at Wanganui Park Secondary College in Shepparton, Victoria.Tanner's father Gerald Tanner played one game for Richmond in 1941. [SEP] Knowledge 2: Gerald Tanner
Gerald Tanner (born 24 August 1921) is a former Australian rules footballer who played with Richmond in the Victorian Football League (VFL).
Knowledge 1: Xavier Tanner
Xavier Tanner (born 2 May 1956) is a former Australian rules footballer who played with North Melbourne and Melbourne in the Victorian Football League (VFL).A centreman, Tanner was recruited to the VFL from Wodonga in the Ovens & Murray Football League.He played in North Melbourne's 1977 premiership side and their losing grand final the following season.After managing exactly 100 games he joined his old coach Ron Barassi at Melbourne in 1984 and spent the last two seasons of his career with them.Tanner is currently the Assistant Principal at Wanganui Park Secondary College in Shepparton, Victoria.Tanner's father Gerald Tanner played one game for Richmond in 1941. [SEP] Knowledge 2: 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 includeWhat 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."
Knowledge 1: Xavier Tanner
Xavier Tanner (born 2 May 1956) is a former Australian rules footballer who played with North Melbourne and Melbourne in the Victorian Football League (VFL).A centreman, Tanner was recruited to the VFL from Wodonga in the Ovens & Murray Football League.He played in North Melbourne's 1977 premiership side and their losing grand final the following season.After managing exactly 100 games he joined his old coach Ron Barassi at Melbourne in 1984 and spent the last two seasons of his career with them.Tanner is currently the Assistant Principal at Wanganui Park Secondary College in Shepparton, Victoria.Tanner's father Gerald Tanner played one game for Richmond in 1941. [SEP] Knowledge 2: Les Richards
Les Richards( date of birth unknown) was an Australian rules footballer who played with North Melbourne in the Victorian Football League( VFL).

Answer: 24 August 1921