What kind of knickers should be worn with a garter belt?

woman in stockings with a dog on a leash is picking up her dropped purse.  High heels, stockings, suspender belt, knickers, hat, bizarre.

pin up girl in knickers

I absolutely love the authentic pin up girl look with fully fashioned stockings and garter belt and I’d love to re-create that look.

I remember hearing in a talk show that garter belts are not supposed to be worn with thongs, at least authentically.  It makes sense since thongs are a relatively recent invention.

But what kind of panty would one wear?  Or, should I say the British way, what kind of knickers? I would appreciate if someone can send me some ideas.

I am also trying to understand if in the vintage image below garter belt straps are attached to the panty or if the panty is being worn over the belt.  Ideas?

I would really like to do a photoshoot dressed in the most authentic way possible.