It has all the signs of being written at 3.00 am (guess what - it was) and I need to check the references. The Henry Miller / Marlene Deitrich one in particular is probably wrong. I think it is quoted in "The Moon's a Baloon" though. And I cannot remember the Robert Browning, or (which is more annoying) where I saw it quoted.
Please check it out and mail me [email protected] with comments.