What is it with Labour husband and wife teams

To the delightful Harriet Harman & Jack Dromey, the ever fragrant Tony & Cherie Blair and others we can now add Roy and Alicia Kennedy - who are they you may ask... From Guido Fawkes we read - "Roy Kennedy was the Labour party's Director of Finance and Compliance when the illegal funding operation was under way. Guido has been trying to track him down with no success, nor can he get hold of his wife Alicia, who just happens to be Labour's Deputy General Secretary."