I searched and I couldn't find a thread for her, so sorry if there's already one that I missed!
Model from the United States, Rebecca Leigh Longendyke.
Height: 5' 9.5" (176)
Measurements: 33-25-35 (84-64-89)
New York, Paris, Milan: Women Management
New York: Ford
Milan: Fashion Model Management
Mother agency: Storm
Vogue UK: Fran Summers Is The Yorkshire Teen Turned SS18 Fashion Favourite