I'm reading Frank Miller's new autobiography and he states that it was actually your idea to make a female Robin in "Dark Knight Returns." He says you even doodled a version.

Do you remember this - was it an off-hand comment or a more serious creative conversation between you and frank? 

Do you remember the doodle - if so, was it anything like what Frank used? 

Thanks in advance for any insight -somehow I'd never heard this before, even though I've read a million interviews with you and Frank over the years!

It's a longstanding (and true!) bit of comics lore that JB's female Robin suggestion was inspired by a Jaime Hernandez drawing of Love and Rockets character Maggie as Robin (see below).

The 10th anniversary edition of DKR includes a supplemental booklet with early artwork, but it doesn't have JB's Robin sketch, only Miller's initial concepts (where she had a mask instead of the glasses/goggles). I don't know if the JB version was published elsewhere.