Ok, back from school run, popcorn in hand, chair pulled up, lights dimmed.
I've been thinking about this in the car and have realised I wasn't thinking it through properly at 07.51am this morning. (what can you expect at that time?) I wasn't allowing for enough generations to pass for the 'rape' argument to make sense.
So: If a black woman slave or employee gave birth to a mixed race child (as a result of sex with her Master/employer, consensual or otherwise) and then that child (presuming it was a girl) did the same, and so on and so on, until eventually the black DNA was sufficiently dilute that the child could 'pass' as white and live and marry as a white person, then their children could be born looking mixed race, (out of the blue) or white but with black features. And the person who passed those genes on would probably have had no idea that they were partly (albeit a tiny amount) black.
And I suppose I can see that in certain societies, even up until relatively recently, a white person having a baby who appears to be partly black would rather be fobbed off with the wet-nurse argument
then admit that they are, in fact, a tiny bit black.
I'm still fascinated to know whether or not there is any truth in it though.
We have a couple in my extended family. White skinned, blue eyed mum, and quite dark mixed race dad (half Jamaican).
They have two children. One is as dark as the dad, the other is as fair and blue eyed as the mum.
So it doesn't even need to take many generations for this to happen.