| Issue | #39 |
| Published | March-April 1958 |
| Frequency | bi-monthly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | George T. Delacorte, Jr. (Publisher); Helen Meyer (President); Paul R. Lilly (Executive Vice President); Harold Clark (Vice President-Advertising Director); Albert P. Delacorte (Treasurer) |
| Notes | first "Timmy" issue |
| Characters | Lassie |
| Synopsis | Full-page photo of Lassie looking to her left. |
| Genre | adventure; animal; children |
| Pencils | ? (photo) |
| Inks | ? (photo) |
| Colors | ? (photo) |
| Synopsis | Illustrated article about farm life in the spring. |
| Genre | fact |
| Letters | typeset |
| Notes | inside front cover |
| Characters | Lassie; Jeff Miller; Ellen Miller (Jeff's mother); Gramps Miller (Jeff's grandfather); Timmy; Mr. and Mrs. Clausen (Timmy's uncle and aunt); Miss Bovard (social worker) |
| Synopsis | The Millers find a runaway boy hiding in their barn. |
| Genre | adventure; animal; children |
| Letters | typeset |
| Notes | based on a 1957 television episode that introduced child actor Jon Provost to the CBS television series "Lassie" |
| Characters | Lassie; Timmy; Jeff Miller; Ellen Miller (Jeff's mother); Gramps Miller (Jeff's grandfather); Porky (Jeff's friend) |
| Synopsis | Timmy accidentally sets a treehouse on fire. |
| Genre | adventure; animal; children |
| Letters | typeset |
| Characters | Spot; Freddy Benson; Jim Benson |
| Synopsis | Spot saves Freddy and his father from a rattle snake. |
| Genre | adventure; animal; children |
| Pencils | ? (header illustration) |
| Inks | ? (header illustration) |
| Colors | ? (header illustration) |
| Letters | typeset |
| Characters | Blaze; Satan; Emperor; Truck Drivers |
| Synopsis | Blaze is caught between two battling bulls. |
| Genre | adventure; animal; children |
| Letters | typeset |
| Characters | Lassie; Timmy; Jeff Miller; Ellen Miller (Jeff's mother); Gramps Miller (Jeff's grandfather); Porky (Jeff's friend); Wolf Pup; Mother Wolf |
| Synopsis | Timmy brings home a wolf pup. |
| Letters | typeset |