She may have talked to others before giving her account of events as I seem to recall someone referencing her saying that Oswald had lunch with Truly. So she had clearly talked with others in the immediate aftermath of the assassination and got certain details about the lunchroom scrambled while knowing that Oswald had been in the lunchroom with Truly (but not understanding this was a brief, chance encounter). She then wills herself into history by claiming to have seen Oswald around that location.
Nice raw and completely unfounded speculation 
From "She may have talked to others" to "She had clearly talked to others" in two sentences. Simply amazing....
We know Oswald beat it out of there as quickly as he could.
Really? And how exactly do we know that?
In her affidavit, Pauline Sanders confirms that Reid mentioned Oswald's lunchroom encounter with Truly which she attributed to them "evidently lunching." In Reid's understanding of events as recounted to Sanders, Truly and Oswald were having lunch when a policeman put a gun in Oswald's stomach and Truly vouches for him as an employee. Obviously, a scrambled rendition of facts. Reid was not present during the lunchroom encounter. So how would she know about this lunchroom encounter unless she was told or overheard it from others in the aftermath of the assassination? Don't you think the TSBD employees discussed among themselves what they had seen that day? As a result, she knows from others that Oswald was in the lunchroom in the vicinity of her workstation after the assassination. She may or may not have seen someone in a white t-shirt and claims it was Oswald - a person who she barely knew. There is doubt as to whether this encounter took place and, if so, whether it was Oswald or not. In the aftermath of historical events, some people intentionally or unintentionally falsely want to put themselves into the events. It seems unlikely that Oswald was wearing only a white t-shirt since that is not how he was described in the lunchroom encounter moments earlier. But believe anything you want. It doesn't matter much whether she saw him or not.
Mrs. SANDERS advised that this morning she called GERALDINE
REID, another employee, telephone number FE 1-6617, who told her that the police officer who had first entered the building ran into the lunch room where Mr. TRULY, the warehouse manager, and OSWALD were evidently lunching. The police officer put his gun into OSWALD's stomach but TRULY advised the police officer that OSWALD worked for him. Police officer turned away and evidently left the area. She said according to REID, OSWALD then went to the main office
and REID, although she had not observed the initial incident with the police officer, told OSWALD that the President had been shot. According to SANDERS, Mrs. REID claimed that OSWALD just mumbled something and left the office. She said Reid did not mention how OSWALD left the office or for that matter if she knew how he might have left the building. SANDERS advised that the stairwell would probably have been the easiest way to leave without being too noticeable since the stairwell is in need of repairs and employees had been instructed not to use the stairwell.
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