Envelopes #426-452, 1916-1919, undated

#426: Wallis paintings; Maris "Windmills & Lock," 1916

#428: United States Steel common stock, undated

#431: Contribution to John W. Alexander Endowment Fund, 1916-1917

#432: Subscription to fund to bring French concert singers to New York, 1916, 1918

#433: Contribution to the Hospitality Fund of the American Association for the Advancement of Science, 1916

#436: United Alloy Steel Corporation syndicate, 1916, 1919

#439: Correspondence with George Lockhart Allen re: purchase of Foster lot, 1916-1917

#440: Stock in Kendall Gold Mining Co., 1916-1917

#441, 441 A: Union Arcade Building re: city assessments, 1916-1918

#444: American Ambulance Hospital in Paris, 1917

#446: Chicago & Northwester Railway Co. stock increase, 1917

#447: Sale of equipment, etc. in Frick Building to Duquesne Light Co., 1916-1917

#449, 449 A: United Kingdom of Great Britain and Ireland One-Year and Two-Year 5 1/2% Secured Loan Convertible Gold Note Syndicate, undated

#451: Application of Joseph Donon for the position of chef, 1917

#452: Pach Brothers re: steel engraving to be made from photograph of Henry Clay Frick, 1917