All this happened in his first appearance, "Who Is Mr. Terrific?" in Sensation Comics #1 (January, 1942) by Charles Reizenstein and Harold W. Sharp.
This story was reprinted in the Famous First Edition C-30 of 1974 and in the Millennium Edition: Sensation Comics #1 (October, 2000), but more as this was the start of Wonder Woman's first regular series.
This story was reprinted in the DC Comics Rarities Archives #1 of 2005, and also features Wildcat, Johnny Thunder, Ma Hunkel and a few other Golden Age characters as well like Hawkman, Green Lantern, Wonder Woman and the Flash!
Sadly, only the first five of Mr. Terrific's Golden Age tales from Sensation Comics #1 to Sensation Comics #5 (May, 1942, all by Charles Reizenstein and Hal Sharp) were reprinted in the JSA All-Stars Archives #1 of 2007, but he was in good company (but they still had many stories to reprint, as Mr. Terrific had a series until Sensation Comics #63 of March, 1947).
Mr. Terrific's one and only other Golden Age appearance was in All-Star Comics #24 (Spring, 1945), which was reprinted in All-Star Comics Archives #6 of 2000, and you can read more about him joining the JSA here!
This story was reprinted in the Famous First Edition C-30 of 1974 and in the Millennium Edition: Sensation Comics #1 (October, 2000) all along with Mr. Terrific's tale, as well as in Secret Origins #3 (July-August, 1973) with a cover by Nick Cardy and in the Greatest Golden Age Stories Ever Told hardcover of 1990 with a Jerry Ordway cover.
This story was reprinted in 100-Page Super-Spectacular DC-14 of February, 1973 and includes Golden Age reprints of Batman, Wonder Woman, Blackhawk and Doll Man all under a wraparound cover by Nick Cardy!
Both these stories were reprinted in Comic Cavalcade Archives #1 of 2005, along with the rest of the contents of those issues (and Comic Cavalcade #3 of Summer, 1943, which didn't include Wildcat), including Golden Age stories of Green Lantern, Wonder Woman and Flash, and even the Black Pirate, Hop Harrigan and Scribbly.
Wildcat was also in the Big All-American Comic Book of 1944, where "Wildcat Met The Kidder", with no identified writer, and art by Joe Gallagher; along with Mr. Terrific and more, and it was still reprinted in the DC Comics Rarities Archives #1 of 2005.
Wildcat faced trouble in "The Wasp's Nest" with no identified writer, but art by Joe Kubert in Sensation Comics #66 (June, 1947), where he and Stretch Skinner faced the Yellow Wasp (who had appeared before, in the Wildcat stories in Sensation Comics #20 and #25, both not reprinted).
This story was reprinted in Wanted: The World's Most Dangerous Villains #6 (February, 1973), with a cover by Nick Cardy (and the villain being called the Golden Wasp, which led to some confusion over the years). The issue also featured Starman and Sargon!
Helena Wayne, daughter of Batman (though she faced her as well).
This story was reprinted in 100-Page Super-Spectacular DC-20 of September, 1973 along with a Black Canary tale (and a few other Golden Age stories), and Black Canary and Starman faced off against the original Huntress as well in Brave and the Bold #62 (October-November, 1965), and Black Canary was there when Huntress was part of the Injustice Society of the World returned to fight the JSA in All-Star Comics #41 (June-July, 1948).
This tale found its way into Justice League of America #96 (February, 1972), along with a Golden Age Hourman reprint and under a cover drawn by Neal Adams; Wildcat still was featured in Sensation Comics all the way up until Sensation Comics #90 (June, 1949).
But, there was one more Golden Age Wildcat story to be told!
This reprint also found itself reprinted, as the DC 100 Page Super Spectacular #6 Replica Edition in May, 2004.
Wildcat's Golden Age JSA adventures including how he joined the team are recapped here!
Wildcat, like many other JSAers, found his first five stories (from Sensation Comics #1 to Sensation Comics #5 of May, 1942) reprinted in the JSA All-Stars Archives #1 of 2007.
Well, we are, and this story has his origins.
This story has been reprinted a few times, in Famous First Edition F-8 (August-September, 1975) and in the Millennium Edition: Flash Comics #1 (September, 2000), but likely more because the book is also the first appearance of the Golden Age Hawkman and Flash....but, hey, Johnny was there too!
Unfortunately, most of Johnny's reprints came because he was in a book where others had stories reprinted. Johnny was in the New York World's Fair Comics #2 (1940) with the story "At The World's Fair" by John B. Wentworth and Stan Aschmeier, where Johnny tries to impress his girlfriend, Daisy Darling, but ends up getting his wallet stolen (and later found by the Thunderbolt). Johnny was also in the the Big All-American Comic Book (1944) in a story by Julius Schwartz and Stan Aschmeier, where Johnny and his adopted daughter, "Peachy Pet Met the Big Bad Wolf". Both of these tales were reprinted in the DC Comics Rarities Archives #1 of 2005 along with many other Golden Age tales, including stories from Wildcat, Mr. Terrific, Hourman and the Atom.
This story was reprinted in All-Star Comics Archives #0 from 2006, and Johnny was popular enough to stay as a regular guest of the Justice Society in their earliest appearances, and even had solo tales in All-Star Comics #4 (March-April, 1941) and in All-Star Comics #5 (June-July, 1941), although Johnny didn't become a member until All-Star Comics #6 (August-September, 1941) (and All-Star Comics #3 to #6 are reprinted in All-Star Comics Archives #1 from 1992, where you can read more about Johnny, and you can read how he joined the JSA here).
...as in Flash Comics #86 (August, 1947), Black Canary premiered in Johnny's strip, and his tales from Flash Comics #86 to Flash Comics #91 (January, 1948) were reprinted in The Black Canary Archives #1 along with the rest of her Golden Age tales and more!
So, Johnny was helped out by his friends!
With All-American Comics #20 (November, 1940) by Sheldon Mayer, Ma realized she needed to adopt a super-heroic identity to help her kids, and put on longjohns and a pot, and became...the Red Tornado!
Ma's first five tales as the Red Tornado were reprinted (along with Golden Age Superman, Batman and Plastic Man tales) in "A Smithsonian Book of Comic Book Comics" in 1981.
Ma's first five tales as the Red Tornado, from All-American Comics #20 to All-American Comics #24 (March, 1941) were also reprinted in the JSA All-Stars Archives #1 of 2007 along with those of Dr. Mid-Nite, Hourman, the Atom, Mr. Terrific, Wildcat and Johnny Thunder.
Would that there be more Archives of these delightful tales!