Which "New Yorker" covers featured DC Comics superheroes?

The New Yorker, to which I have been a subscriber since high school, debuted in 1925. 

DC Comics, of which I have been a reader except high school, was founded in 1934. 

Two American publishing institutions.

With regard to the coveted New Yorker cover, when have the two overlapped?

Only three times that I know of.

7/17/95; look closely and 

you will see Superman

(Peter de Sève)

4/17/99 Plastic Man 

(Art Spiegelman)

11/1/10 I count four (plus two Marvel heroes): 
Superman, Batman, Robin, Wonder Woman, 
Spider-Man, Hulk

(Ivan Brunetti) 

(Plastic Man was originally published by Quality Comics, but DC acquired him in 1956.)

Thanks to Sean Howe for remembering the third.