There is No Evidence I am aware of that Oswald EVER used Frazier as corroboration of his being on the TSBD Steps when the JFK motorcade passed by. If you are aware of any Evidence of Oswald having done this please post it.
Maybe she was looking into her purse to get her camera out and decided instead to get out her mug of beer !
Mr Storing, you evidently cannot back up your claim that 'Oswald did Not use Frazier to corroborate his being on the TSBD steps'. No biggie!
You don't know what's in her hand. Actually, it hasn't even been proven that it's Sarah Stanton.
It has the shape and color of a styrofoam cup which is commonly used in break rooms to hold coffee. And whoever this person is, they are very close to the TSBD Break Room.
So again we have someone asking for Proof of a Negative.