When I was in boarding school during WWII near Kansas City, we had curtain stretchers. The curtains were starched, I believe; we girls carefully stretched and pinned the edges, one curtain on top of another.
Dress shirts were put aside after the rinse, so that someone could dip each collar and cuff into cooked starch, with excess starch hand squeezed before hanging to dry. Many of us will recall using a square-shaped tub with ringer, and the order in which clothes were placed in that tub, finishing with throw rugs and rags that were laid out to dry on the grass, bushes and fences. Auntie even starched and iironed pillow cases. Thanks for the memories.