Welcome to Argonne Trust Company
Chartered in the state of South Dakota, Argonne Trust offers reliable advice and hands on service to our clients. Part of the 3 Dimensional Wealth Advisory (formerly Diefendorf Capital) Family of Financial Service companies, Argonne Trust completes the offering necessary to provide "total" wealth management to families. Through the marketing arm of 3 Dimensional Wealth Family Office Services, Argonne Trust is well positioned to provide the trust administration for protecting and perpetuating one's values-in perpetuity.
What Makes Us Different
"Expertise born from experience"
Experience: Our Trust Marketing Officers have over 120 years of experience in the financial arena.
Wisdom: Our 3 Dimensional approach to wealth management provides a unique platform for values based planning.
Process: Our business management systems allow us to operate in an efficient manner, keeping fees to a minimum.
Why the name Argonne?
American history records that over 4,000 soldiers were killed in one day, and on that day the Argonne Players performed under active fire and mortar attack. The show went on, and when the smoke had cleared, 500 of the 700 in the Liberty Division had perished but the Argonne Players had survived. Shortly after, Lieutenant Diefendorf and his players were invited to perform at the signing of the peace treaty in Versailles, ending the war. Subsequently, the show opened on Broadway with notables in attendance, such as Calvin Coolidge, Woodrow Wilson, and General Pershing. Warren returned to the family business with his father and ultimately led the Diefendorf organization until his death in 1935.
The history book is closed on WWI and its participants, but today we are writing our own history book.
Warren E. fought the war with unconventional weaponry - with music. We too, go with unconventional weapons; a South Dakota trust company and their unique purposeful trusts. Our current day “Argonne Players,” enter the financial arena with a lofty mission: “to protect and preserve your values– in perpetuity.” It is my goal to lead our financial professionals in a similar way to how Warren E. led his troops - to serve, and survive.
Hence, the name Argonne was selected.
Monroe “Roey” Diefendorf, Jr.
Grandson of Warren E. Diefendorf