7/20 The heir hunters reveal a family's links to one comic genius' radio career.
6/20 The heir hunters reveal the heroic tale of WWII minesweepers.
5/20 One search uncovers the remarkable history of Thames bargemen.
4/20 Heir hunters are on the road in Ireland, researching the estate of a Limerick-born man.
3/20 A search tries establish the value of one Lincolnshire railwayman's estate.
2/20 The case of an ex-mayor of Wokingham uncovers his devotion to his local community.
1/20 The case of a champion cat breeder uncovers the romance of early cinema.