She was the first female pilot to work at the Shuttleworth Collection of vintage planes at Biggleswade.[9]
She absolutely, categorically, was not the first female pilot to "work" at the Shuttleworth Collection.
1) TCT has never flown a Shuttleworth Collection aeroplane, either solo privately or in a display. There is an outside possibility that she might have flown as a passenger in a Collection aeroplane.
2) The definition of a Collection pilot is someone who has flown a Collection aeroplane, in an air display. There are at least two other female pilots who have flown Collection aeroplanes, a long time before Tracey turned up with her own aeroplanes. Because they weren't taken on as permanent display pilots, they aren't recognised as Collection pilots officially. Anyone with any common sense would admit that the fact they'd flown Collection aeroplanes really does make them fit the description of female pilots working with the Collection far more closely than TCT does.
3) Meanwhile there have been a number of female pilots who have worked at the Shuttleworth Collection, albeit not as Collection pilots (but then, neither was she a Collection pilot). Their contribution has been considerable and continues to this day.
4) The first official female Collection pilot was Clare Tector, however she herself openly agrees that those earlier flights beat her to the mark.