Four finalists for Mason City fire chief share a diverse background in firefighting and emergency response. The final selection will take the helm vacated when former Mason City Fire Chief Bob Platts retired June 30. The four candidates are: Des Moines Fire Capt. Mark Dooley; Lincoln Park, Michigan, Fire Chief Al Dyer, Jr.; Mason City Fire Department Deputy Chief David Johnson; and Mason City Fire Department Capt. Jared Ogbourne. A panel consisting of fire chiefs from Waukee, Ankeny and Oelwein interviewed the group on Tuesday. Each finalist also completed a written test and gave a presentation. City officials hope to fill the position by early August. A Globe Gazette reporter spoke with the candidates Tuesday afternoon about their qualifications, why they’re interested in the job and what they hope to bring to the community.