.

I was surprised when I looked at the BATMAN and DETECTIVE COMICS credits across the 1940's,1950's and 1960's (in the issues themselves they are uncredited, but in the modern era with indexes on comics.org and mycomicshop.com , you can see Bill Finger was scripting stories right up through the 1960's, when Gardner Fox, John Broome and Robert Kanigher, and then in 1968-1969 Frank Robbins and Dennis O'Neil took over scripting.

One revealed credit to Bill Finger that surprised me was the famous addition to the Joker's origin in "Man Behind the Red Hood" in DETECTIVE 168, Feb 1951.
https://readcomiconline.to/Comic/Detective-Comics-1937/Issue-168?id=5240

Plus other new characters launched by Bill Finger, introducing Batwoman in DETECTIVE 233, July 1956.
https://readcomiconline.li/Comic/Detective-Comics-1937/Issue-233?id=5409
Plus intruduction of the 1950's Batgirl (way before the 1967 Barbara Gordon version).
https://readcomiconline.li/Comic/Batman-1940/Issue-139?id=17753#25
Along with Bathound, Batman II and Robin II (the next-generation Batman and Robin of the future),
Bat-mite, and a lot of spacefaring Batman adventures to other planets.
https://readcomiconline.li/Comic/Batman-1940/Issue-131?id=17745

And "Robin Dies At Dawn" in Batman 156, June 1963, on the stands about the time I was born!
https://readcomiconline.to/Comic/Batman-1940/Issue-156?id=17770#1


And "The First Batman", in DETECTIVE COMICS 235, Sept 1956:
https://readcomiconline.to/Comic/Detective-Comics-1937/Issue-235?id=5414#1