The Olmsted firm often arranged to make follow-up visits to landscapes to ensure that designs had been properly carried out. Where landscapes needed to be altered, expanded, or redesigned, clients often re-hired the Olmsted firm. The firm kept every piece of paper, plans and images, at Fairsted, with images stored in the Photographic Records Room, and plans in the fire-protected Vault. Some of the firm's later partners worked on improvements for projects that they had worked on in the early years of their careers. The Olmsted firm's involvement with some projects spanned many decades.
