Chemical engineer and water purification expert. Came to Springfield in 1926 to start the operation of the water softening plant which he helped design for the Sangamon River Station. Designed the Springfield Water Purification Plant built in 1936. Noted internationally for his invention of the Spaulding Precipitator, used internationally in water treatment plants. During World War II, designed a mobile water filtration unit for use by troops.

Technical article, manuscripts and reprints by Spaulding regarding operation of the water softening plant, preammoniation, manipulation of pH, and the water purification plant in Springfield; purification of water from the Sangamon River; and general issues of water purification, softening and odors. Also comprises personal letters, photographs, clippings, obituaries and biographical statements regarding his career; a 1957 report by Spaulding to Springfield City, Water, Light and Power on operating the water purification plant; and reference materials. A news clipping and photographs regarding the dedication of the Spaulding Fountain at Brookens Library at SSU. A specimen of a Spaulding precipitator is included.