No sports coats (less formal than a suit coat but still dressy) until a CO showed up wearing one
No colored dress shirts. White only. Until younger elders rebelled.
No facial hair of any kind, not even moustaches, if you want to be an elder
No spaghetti straps
No open-backed dresses
No denim skirts
No sundresses. 'Immodest' even for very young girls.
Nylons MUST be worn by women
No ankle jewelry
Two-piece bathing suits HIGHLY discouraged