The Correspondence Series is comprised of two boxes that extend over an 81-year period, starting in 1913 and ending in 2004 and arranged in alphabetical order. Majority of correspondence relate to the purchase of milling equipment such as elevators, dryers, flour packers, and sifters; the purchase of the Lemon Mill in Bedford, Indiana and the Ginger Feed and Elevator Company, Jeffersonville, Indiana; the sale of the company’s products such as corn meal, dog food, flour, livestock feed, and Glu-X; and the sale of the Seymour Mill. Correspondence between Phil Robertson and G. Terry Sharer, discusses historical milling machinery the Robertson Corporation donated to the Smithsonian in 1979. In 1980, Phil Robertson attended a reception hosted by the Smithsonian on the acceptance of the historical machinery. Equipment donated to the Smithsonian Institute.
The Financial Records are house in six boxes. Five boxes, 1928-2004, are filed in alphabetical order. They include annual meetings with statements of profit and loss, account ledgers, accountant's compilation report, auditors compilation report, balance sheets, cash flow statements, capital investments, estate transfers, financial statements, income tax basis, income tax returns, purchase orders from companies such as Advance Fabricators, Bearings Incorporation, Creason Corrugating, and Insects Limited, and sales and production figures. One box consists of the 1959 Ewing Mill appraisal, a Peoples bankbook, cash books, check stubs, financial ledgers, a payroll ledger from 1916 to 1917, production ledgers, sales slips, and a 1916 shipment register.
Minutes are stored in four boxes. (1960-1997, 2007-2009) are stored in two boxes and give insight on the daily, weekly, monthly and yearly goals of the Robertson Corporation. Each set of minutes contain travel plans, the price of crops on the market and a general overview of the company. There are two boxes of formal minutes in minute books (1960-2009).
The Subject Series (1874, 1881-2004) is the largest of all of the series. It is housed in nine boxes and contains insurance policies, newspaper clippings and class notes from when Joe E. Robertson attended Kansas State University in the 1940s. Listed alphabetically, the series covers the purchase and sale of mill property and equipment, contracts, events, feed and grain, flour standards, general milling information, history of the companies and employees, inventories, newspaper clippings, patent information, research, and one of the later important pieces of the corporation’s history: how the company eventually turned to Glu-X as a main product. Aerial view of the Ewing Mill in Brownstown, IN.
The Photographs Series (1900-2000) consists of four boxes of photographs and one box of glass negatives. It includes aerial views of the corporation, views of the mills, the after effects of a large snowfall, exhibits, and fires. Some of the photographs date back to 1900. This series is a picture book of change and innovation with photos ranging from horse and buggy to early automobiles, then on to large loading trucks. An interesting set of photos shows construction of the Ewing Blending Plant. With the photos in order, one can see each step of the construction from beginning to end. Not all photographs are business-related as there are family photos of each family member inside and outside the office. Notable family photos include a photo of Phil Robertson at the Smithsonian and photos of the Robertson's as boys and men.
Oversize Materials are stored in three boxes and includes newspaper clippings, Robertson Corporation abstract, loan application, mortgage, feed lists, equipment blue prints and printed material. Ewing, Indiana. Printed Material is the second largest series in the collection and is comprised of eight boxes. The largest section in this series is Articles that includes items from Milling and Baking, The Northwestern Miller, and Random Lengths. Brochures and pamphlets dot the landscape of printed material and include research findings from respected institutions or from attended research symposiums. Many of the magazine articles deal with World War II or the Russian grain embargo. There is also a collection of books pertaining to the history of milling and includes a copy of <emph render='italic'>The Robertson Corporation 1880-2000 </emph>written by R. R. Phil Robertson. Family member Richard S. "Dick" Robertson wrote <emph render='italic'>Recollections of My Life in Brownstown, Indiana</emph>, included in the collection. These recollections are snap shots of Dick's life in Brownstown. The Artifacts Series is stored in one box and includes flour slicks, commemorative coins, packaging bags for Glu-X and Triple-R dog food, and promotional items.
The Artifacts are stored within the department's Artifact Collection. Box 40 in this inventory lists the artifacts.