Addition:
1st appearance of Hanna Hobart, revealed to be Sundowner in issue #2, seen on the cover of this issue
Took a dive into this one: Hanna Hobart as Sundowner already makes a cameo appearance in Detective Comics #1043. We already had Sundowner mentioned in #2. The appearance of herself (just Hanna Hobart) in #1 becomes irrelevant because of that. I have changed #2 to 1st full. Thank you for posting