New York World's Fair ComicsBatman's first appearance as well, so Batman isn't in this issue) where Sandman stops hoods who steal his new ray gun invention. New York World's Fair Comics #2 (July, 1940) has the adventure of "Sandman Goes To The World's Fair" by Gardner Fox and Chad Grothkopf, with Sandman rescuing his kidnapped girlfriend, Dian Belmont.
Both of these stories are reprinted in the DC Comics Rarities Archives #1 (December, 2004)
Adventure ComicsTarantula (John Law), though Sandman and the second Tarantula do have a bond, detailed later in All-Star Squadron. This story involves Sandman rescuing kidnapped actress, Vivian Dale, and freeing her from the Tarantula's clutches. Sandman's fashion was a little off in this issue, as in his earliest appearances, his suit was orange (before settling on green). This tale does not feature Sandman's origin, which did not come to light until Secret Origins #7 (October, 1986), at the New York World's Fair (and involving the Crimson Avenger, another pulp styled mystery man).
This tale was reprinted in Justice League of America #94 (November, 1971), which had this stunning cover featuring Deadman and the Justice League by Neal Adams, in an incredible story featuring the League of Assassins, as well as Starman's first appearance in Adventure Comics.
This story was reprinted in Justice League of America #99 (June, 1972) along with a Golden Age Atom story (and a cover by Nick Cardy) and in Greatest Golden Age Stories Ever Told (1990) with a cover by Jerry Ordway.
This reprint came about in Millennium Edition Adventure Comics #61 (December, 2000) which was a reprint that came from a vote by the fans...
...proving how popular Starman was (with Sandman and his fans also being one of the lucky recipients of that popularity, as this was the only place this story has been reprinted so far!).
This story was reprinted in 100-Page Super Spectacular DC-17 (1973) under a cover by Nick Cardy, with three other stories...
...two featuring the Justice League and one with the Justice Society, with more facts on all of them here!
Then, Sandman was a charter member of the Justice Society of America starting with All-Star Comics #3 (Winter, 1940-1941), with more of career there detailed here.
World's Finest ComicsWorld's Finest Comics #3 (Fall, 1941) to #5 (Spring, 1942), have the very last of Sandman's original look, but these tales have not been reprinted at this time.
Golden Age Sandman Archives
.....but not quite all, as it still misses the last of his suited adventures, that lasted until Adventure Comics #68, and World's Finest Comics #5.
But, these issues did NOT signal the end of Sandman's Golden Age career!
....with Sandman returning to his classic look with the JLA/JSA team-ups (and even later, with retroactive tales of Wes in the 1940s, with Sandman Mystery Theatre), with these tales to be looked into sometime in the future.