Tom has been searching for his sperm donor siblings for six years.
Jo was conceived by sperm donation in London at 52 Harley street in 1971.
Juliet was conceived by artificial insemination at a clinic in Weymouth Street, London.
Lisa was conceived in Harley Street in November 1978.
Nicola was conceived by donor insemination in 1962 in Harley Street, London.
Lucy was conceived by donor sperm in London in 1986.
Paul was a sperm donor in London, 1980-1982.
Ruth was conceived from a sperm donation at the Jessop Hospital For Women in Sheffield in the summer of 1983.