Here's Mr. F out West, an odd feature to find in Manhunt #13, from 1952. Thanks to Tigger/josemas for the work on ComicBookPlus. Even odder, this tale has two pages 6s, and no 5, but appears to be all here.
Here's a different looking style from Mr. F. Looks to me like a guy named Kurtzman sneaked into his studio at night. Anyway, it's from Treasure Comics #8, Aug-Sept 1946, and comes to us from comicbookplus via JonTheScanner.
This story, from Thrilling Comics #67 (Aug. 1948) is, I believe, the first appearance of Looie Lazybones. It wasn't his last. Looks to me like this is Frank trying out for the Li'l Abner strip, where he finally got a shot six years later. Thanks to josemas and comicbookplus for the scans. The gorgeous cover below, of course, is by Alex Schomburg.
Here's the lead story in the all-Frazetta comic, Thund'da #1. It's from 1952, and uploaded to comicbookplus by Joshua / josemas. The script is credited to Gardner Fox.
This story appeared in Danger Is Our Business #1 (Dec. 1953). I found a cleaner copy of it in a reprint of the same title (#9) from 1958. Thanx to Dave Hayward for the comicbookplussing.