c. 1926 Elmer Hale Pratt joins the Boston Architectural Club; works as draftsman for Perry, Shaw, and Hepburn.
Colonial Williamsburg Williamsburg, VA Restoration, 1927–1934 William Graves Perry, Architect Perry, Shaw, & Hepburn, Architectural Firm The W.C. Vaughan Co., Manufacturer Perry, Shaw, & Hepburn, Master Plan
Under Elmer Pratt’s direction, W.C. Vaughan Co. introduces Lucite door pulls. c. 1937 The W.C. Vaughan Co., Manufacturer
The Gropius House Lincoln, MA 1938 Walter Gropius, Marcel Breuer, Architects The W.C. Vaughan Co., Manufacturer
Gov. Gore Mansion Waltham, WA Restoration, c. 1939 The W.C. Vaughan Co., Manufacturer Jacques-Guillaume Legrand, Rebecca Gore, Architects, 1804
1944 Walter Vaughan retires; divides shares in W.C. Vaughan between Stafford Vaughan and Elmer Pratt.