From L. Ron Hubbard Jr's interview with Penthouse
http://www.rickross.com/reference/scientology/scien240.html
Hubbard Jr: . . . That's how my father became obsessed with abortions. I
have a memory of this that goes back to when I was six years old. It is
certainly a problem for my father and for Scientology that I rememoer
this. It was around 1939, 1940, that I watched my father doing something
to my mother. She was lying on the bed and he was sitting on her, facing
her feet. He had a coat hanger in his hand. There was blood all over the
place. I remember my father shouting at me. "Go back to bed!" A little
while later a doctor came and took her off to the hospital. She didn't
talk about it for quite a number of years. Neither did my father.
Penthouse: He was trying to perform an abortion?
Hubbard Jr: According to him and my mother, he tried to do it with me. I
was born at six and a half months and weighed two pounds, two ounces. I
mean, I wasn't born: this is what came out as a result of their attempt
to abort me. It happened during a night of partying --he got involved in
trying to do a black-magic number. Also, I've got to complete this by
saying that he thought of himself as the Beast 666 incarnate