Yes, he appeared in The Funnies issues 30-56, first as a 4 page feature, then later 8 pages. I have a few of those other issues, but not the full set. The early issues are by an unknown artist, but starting with #34 it was done by ERB's son, John Coleman Burroughs. JCB would go on to do a short-lived John Carter newspaper strip and the David Innes of Pellucidor feature in Hi-Spot Comics #2 (the only GA appearance of that Burroughs character and one of my grails). In The Funnies 57, John Carter was dropped and replaced by some guy named Capt. Midnight.
The three Four Color issues in the 50's were done by Jesse Marsh and are pretty lackluster compared to the earlier Funnies material by JCB.