Well, after those DC and Marvel Superhero posts
let's finish off the superhero comic strips.
The Blue Beetle first appeared in Mystery Men Comics #1 (August 1939),
the superhero debuted as a newspaper comic strip on January 8, 1940.
https://tinyurl.com/y9z2xp9w
Credited to Charles Nicholas, the art for the first couple months
was ghosted by Jack Kirby. He got his super powers from Vitamin 2 X
https://digitalcomicmuseum.com/preview/index.php?did=25189&page=10
Louis Cazaneuve is credited with the art for the above strip
and (I guess) for the rest of the dailies that lasted until
November 26, 1940. The Sundays were reformatted comic book pages.
What may be the first costumed and masked comic strip superhero
appeared April 15, 1935 in The Adventures of Patsy. That is when
The Phantom Magician, as created by Mel Graff, first appeared.
Seen here as presented in Famous Funnies #32:
http://images.furycomics.com/viewer/5c/5cdcf67800d1babd1521507c51902661/25.jpg
(though he was first heard in the daily of April 13, 1935:
http://images.furycomics.com/viewer/ef/eff2fd6b0d4ad7355b79a9e2826959ca/26.jpg
To compare the comic book version to the original comic strip
here is the daily strip of April 29:
http://comicskingdom.com/system/media/4021_page1_original.png?1454449552
and the strip as presented in the comic book:
http://images.furycomics.com/viewer/ab/ab66d9d5f075adb526e01c9d97d0c6bc/25.jpg
(third strip down)
The Phantom Magician appeared in only this one episode,
at the end of which he gives up his costumed persona and
remains with Patsy as Phil Cardigan
http://images.furycomics.com/viewer/bc/bcb333448d80564619c358e55a2fdecd/25.jpg
The entire adventure as edited for the comic book can be read at
http://comicbookplus.com/?cid=1140 (issues #32 - #42)
Russell Stamm's Invisible Scarlet O'Hare debuted June 3, 1940
http://www.invisiblescarletoneil.com/images/history/scarlet/firststriplarge.jpg
The strip lasted over 15 years though after 1954 it was
retitled "Stainless Steel" on October 24, 1954.
Stainless Steel was "a Texas sheriff with blonde hair
and superhero physique. He possessed no powers..."
http://www.invisiblescarletoneil.com/index.asp
The first super powered superhero appeared in the Sunday
comics sections of 1902 - September 7, 1902 to be exact:
http://www.barnaclepress.com/comic/Hugo%20Hercules/hugoherc020907.jpg/
Hugo Hercules used his super strength to mostly aid damsels in distress
http://www.barnaclepress.com/comic/Hugo%20Hercules/
though he saw his way to help more than just fair lasses.
The strip by William H. D. Koerner ran until January 11, 1903.
All(?) the strips are available at the Barnacle Press link above.
Another early super powerful hero of comic strips
was the 1905 Samson the Strong Man by Thorndike:
http://www.barnaclepress.com/comic/Samson%20the%20Strong%20Man/
Sometimes clothes make the superhero.
Tony Stark has no super powers, though his alter ego is a super hero.
Such is the case with Billy Bounce:
http://www.barnaclepress.com/comic/Billy%20Bounce/bounce011110.jpg/
Billy Bounce by the famous W. W. Denslow began on November 10, 1901 (above)
and ran til December 3, 1905, then being done by Charles W. Kahles.
A number of the strips, courtesy of Barnacle Press:
http://www.barnaclepress.com/comic/Billy%20Bounce/
(Billy Bounce predated, by 60 years, Legion of Super Heroes' Bouncing Boy.)
Super heroes can be aliens (Superman) or maybe animals:
http://tmnt-ninjaturtles.com/assets/TMNT-Comic-Strip_Book-I_Page_001.jpg
Teenage Mutant Ninja Turtles began as a comic book,
the comic strip began December 10, 1990 (above)
and ran until December 30, 1996. Samples at
http://tmnt-ninjaturtles.com/memorabilia/scrapbooks-tmnt-comic-strip-scrapbook-volume-i/
Phil Dunlap's Ink Pen featured cartoon characters and
eventually mostly concentrated on the super powered ones.
It began November 7, 2005 and ran until October 14, 2012.
The entire run is available on GoComics:
http://www.gocomics.com/inkpen/2005/11/07
And then there is Evil, Inc. by Brad Guigar
http://evil-inc.com/comic/monday-3/
Super villians.
D.D.Degg