In the business pages of the Evening State Journal (Lincoln, Nebraska), on September 9, 1938, the new corporation of Tillotson Construction of Omaha, Nebraska, was announced, listing Joseph H. Tillotson, Reginald O. Tillotson, and Rose A. Tillotson as partners.  The firm would specialize in the construction, reconstruction, and repair of grain elevators, warehouses, and similar buildings.

Rose A. Tillotson was the mother of Joe and Reginald. Her husband and their father, Charles (b. 1880, Brunswick, Missouri), had died in June of 1938 in Concordia, Kansas. She was born Rose Brennan on March 4, unknown year, in Ireland and died in the 1950s in Omaha while in her late-80s.