American Bank - Fond du Lac branch

Bank History

Black and white photo of groundbreaking for first American Bank branch

  • Decision to charter a state bank and construction began.
  • Steve B. Stone named first President.


  • 3,634 sq. ft. added to first floor.
  • Assets of $38.7 million.
  • Dale G. Brooks named second President



Princeton branch

  • Acquires Brownsville & Knowles.

Mayville branch


Fond du Lac branch

  • 2,067 sq. ft. addition to
    Fond du Lac Office.

Milwaukee office

  • Acquired Milwaukee Office (formerly InvestorsBank).

About our Milwaukee Office: In 1980, George Schonath co-founded Bando McGlocklin Capital Corporation (BMCC), a small business investment corporation, designed to meet the commercial real estate and equipment financing needs of growing, smaller businesses. In working with these clients, George noticed a void in the marketplace for a full service commercial bank dedicated to working with entrepreneurial businesses. As a passionate entrepreneur himself, George brought a willingness to listen, sharing his business acumen and experience. In 1997, InvestorsBank was established with a commitment to support BMCC clients and other local entrepreneurs. Under his leadership, InvestorsBank became known as “The Business Bank with Entrepreneurial Spirit”. Through this commitment and dedication, George worked with business owners who demonstrated strong potential, often providing loans other banks would not consider or invest the time to understand. As a result, many of InvestorsBank’s larger clients were the direct result of this passion. As a second generation company, Sarah Schonath Nack and Emily Schonath Stolzman continued the legacy of their late father until 2014, when American Bank acquired InvestorsBank. The InvestorsBank experienced team of commercial bankers brings now to American Bank, an added strength in the commercial lending area, one that continues to fill the void George Schonath identified years ago. InvestorsBank is now called American Bank, Milwaukee Office.