Keehan, a firefighter with the Manitowoc Fire Department, and Carl Kuehn, a retired firefighter, have been working on the truck since the IAFF 368, the local firefighters' union, purchased it from a private collector about a year ago.
Mack Trucks, Inc., is an American truck manufacturer that was founded under the name Mack Brothers Company in 1900. Many of the trucks and buses manufactured by Mack were given a distinctive bulldog hood ornament.