The agreement to build the "Cutty Sark" was signed by John 'Jock' Willis (also known as 'White Hat' Willis) on 1 February 1869 with a contracted completion date six months later on 30 July 1869. Willis had been an experienced shipmaster in his father's business and now was also an experienced ship owner on his own account. How Willis found and selected Scott & Linton to design and build a state of the art extreme clipper is not known. Linton certainly had many contacts made through his career as a respected surveyor and probably also did design work as surveyors often did at that time. Linton's experience gained at Alexander Hall & Sons probably contributed to his design skills.