JAMESTOWN — The Jamestown Fire Department extinguished a grass fire on Wednesday, May 6, in southeast Jamestown, according to Capt. Sheldon Mohr. Five units and 20 firefighters responded to an area just northeast of the MGM Trailer Court shortly before 9:30 a.m. to a report of a grass fire. Mohr said the Jamestown Fire Department requested mutual aid from the Jamestown Rural Fire Department, which responded with six units and 12 firefighters. Mo…