From the Prelinger Archive, we learn that parents gathering in parks to show off their kustom strollers didn't start with pinstriped Bugaboos or AT-AT Walkers. But since the only mentions of the Ladera Park Baby Show are to this 1950 newsreel, most of that history must remain a mystery. For now. What we do know: strollermodding and parading is primarily for the entertainment of the parents back then, too. [Ladera Park is just southeast of Culver City, by the way. If you take La Cienega to the airport from Sunset, you pass just to the west of it, right after the oil wells. Who knew?]
Babies On Parade - 1950 [archive.org]