Arthur Calvin Newby (December 29, 1865 – September 11, 1933) was an American businessman and pioneer of the bicycle and automotive industries in Indianapolis, Indiana.
A keen cyclist, Newby helped to create the Zig-Zag Bicycling Club in the 1890s and remained its secretary for many years.
At the same time Arthur Newby was involved with Hay and Willits Manufacturing Company, which made Outing bicycles.
Newby's involvement with National led to his partnership with old cycling friends, who went on to form the Empire Motor Car Company.
Fisher found an acceptable parcel just west of Indianapolis and together with Newby, James A. Allison, and Frank H. Wheeler they purchased the land for $72,000.
[5] The group incorporated the Indianapolis Motor Speedway Company on March 20, 1909, with a capitalization of $250,000, with Fisher and James Allison each contributing $75,000 and Frank Wheeler and Arthur Newby on board for $50,000 each.
[2] Newby's $10,000 contribution to Turkey Run State Park ensured its safety from business interests.