Oops, further wrong information – now from Debrett’s.
Mary Wilson Price had two children during her marriage to Donleavy: Rebecca and
Rory. Rebecca and Rory were raised as part of the family. The social bible
Debrett’s “People Of Today” list their dates of birth as December 1979 and July
1980, which some think quite an achievement for the same mother. That presumed
error (or ‘wrong information’?) hid a racier truth (or information?) in that
the real oddity was not the children’s maternity but their paternity – and that
Donleavy was the father of neither. Applying Russell’s logic of relations, the
fact that Rebecca and Rory have different biological fathers who are themselves
brothers – Kieran and Finn Guinness, respectively -- makes Rebecca and Rory
half-way between full siblings and first cousins. Or something.