In an obituary for Mary Arnold , United Press Associations ( now UPI ) referenced the hunt for Dorothy Arnold as " the really great search of the age , and one that did much to develop modern newspaper ' police ' coverage . " In her young adult novel '' Lost '' ( 2009 ) , author Jacqueline Davies combines the story of Arnold 's disappearance with that of the Triangle Shirtwaist Factory fire
Triangle Shirtwaist Factory fire
Triangle Shirtwaist Factory fire
Disappearance of Dorothy Arnold