The chief was an experienced fireman and was a great asset to the Waterloo Fire Department. The chief first began with the department when he was around the age of 17 as a torch boy for the L. F. Walker Hose Company and continually moved up the ranks through different positions until he became chief. In 1908, a REO automobile was purchased for Chief Dunham to drive instead of the horse and buggy and is said to have been the first automobile in Iowa. Dunham served as chief for 21 years until he resigned due to failing health.
In 1908, Company No. 2, also called the No. 2 Hose Company, was moved into a new building at 716 Commercial Street, and three additional men were added to the department. Also that year, the fire department purchased a chemical engine along with two more teams of horses. One team of horses was for an aerial hook and ladder truck owned by the city but housed on the east side of the river for a number of years. Five more men were hired, two of them to help man the aerial hook and ladder, which was located at No.1 Station. Another man was hired in 1910 and one in 1912, bringing the total amount of paid personnel to 22.
In 1911, a major change to the Waterloo Fire Department was the purchase of a motorized fire apparatus. It was also the first vehicle of its kind to be used in Iowa. It was immediately put into service at No. 2 Station, which eliminated the need for one team of horses. Over the next four years the department kept purchasing new equipment and by 1915 the entire fire department was motorized. Important additions included two truck chassis purchased in 1915 from the Dart Manufacturing Company. Furthermore, by this time, four new men had been hired to help operate this new equipment, increasing the number of fully paid workers to 26.