You’ll find four of the strips below. Clifford was Feiffer’s first strip, and he did it for Will Eisner’s studio; the series ran on the back page of the Spirit section. Wikipedia says Feiffer was born in 1929, and I vaguely recall Clifford as running from 1949 to 1950, so Feiffer was the age of a college student when he did the strip. Fantagraphics collected the whole run as the first volume of its Collected Feiffer.
The previous Kids Comics Roundtable installment (Noah on telling kids what to like) was here, and you can see a roundup of my previous Golden Age scans here.
If you want to see these a bit larger, click on them and then click in the new screen where it says “Full Size.” It’s good enough to read them by.
Jan. 22, 1950
Feb. 5, 1950
Feb. 19, 1950
March 5, 1950
"You and me, Doggy! Nobody knows we're alive!" That's kind of poignant. Glad I'm not a kid anymore.