There was a good article in Threads a few years ago on doing cartridge pleats. I will see if I can find the issue. I remember it because I have two baby gowns from the 1700’s that are all cartridge pleated and have intricate very fine Ayrshire embroidery in the bodice. They are sold in antique shops as Christening gowns but I think many that survive were baby day gowns for pampered babies. I think the christening gowns of that era were much more elaborate. At least the ones likely to be still around. And any that were more simple likely didn’t survive.