About Mary Jane

It was 35 years ago on Nov. 1 that Mary Jane Duff joined Jerry Duff at TDC International and The Duff Company, which expanded into Duff Dynamic Marketing and AgriThority. Mary Jane’s leadership and strategic focus are driving forces behind the success of clients around the globe. Thank you, Mary Jane, for your dedication and years of service!

Mary Jane Duff with Clients in the late 1980s.