How were waterproof diapers used in the 1940s?

In the 1940s, waterproof diapers typically consisted of cloth diapering systems that were covered with a waterproof outer layer, often made from rubber or plastic. Parents would use absorbent cloth inserts to soak up moisture, while the waterproof cover prevented leaks. These diapers required regular washing and drying, and were often fastened with safety pins. The introduction of disposable diapers in the later decades would eventually change diapering practices significantly.