1943: Born in Detroit.
1960s: Works as a Detroit police officer at night while attending Wayne State University, where he earns a bachelor's degree in accounting and economics.
1960s to 1980s: Works as an accountant and an executive for banks in Michigan, Ohio and Florida.
1985: Named chief executive of Twin City Federal Savings and Loan in Minneapolis. Cooper cuts costs and cleans house, selling or shutting down unprofitable businesses and firing executives.
1986: Introduces "Totally Free Checking" to appeal to lower-income customers. Competitors Norwest and First Bank follow with their own low-cost options.
1987: Reorganizes TCF into a holding company, TCF Financial Corp.
1988: Opens TCF's first supermarket branch.
1990: Serves as finance chairman of Arne Carlson's successful campaign for Minnesota governor.