Tribute to M.A. Mortenson, Sr. -- 1954-1959. Betting on the future -- 1960-1969. Father, son & company -- 1970-1979. Attracting the best -- 1980-1989. The dynamic decade -- 1990-1999. Creating value -- 2000-2004. Stewards of a legacy -- Our best chapter -- M.A. Mortenson Company Board of Directors and Senior Leadership Team.