1931 - 1940
During this period, J.M. added to the equipment to be able to provide more Vulcanizing for Repairs and Retreading, 3 more lots were added and a new building was built in 1940.

1940 - 1945
During the war years, tires were rationed, so satisfactory repairs were necessary and custom retreading became a necessity. In 1945 another addition was made to the building to house the new retread molds and a basement for storage of materials and products.

1945 - 1961
This period saw a continuation of growth in the business of servicing more large and small fleets, farm tires, construction tires and over the highway truck tires. Retreading was an important part of the business one large contract being the city transit system. In 1961, J.M. Harper retired, the tire business was combined with Harper's Hardware and Jack, Don and Stan , his three sons became partners. At this time the gasoline pumps were removed and a new show room was constructed on the front of the property.