Duane Nicholas Mertesdorf

Duane Nicholas Mertesdorf was born April 15, 1947, in Blue Earth County, Minnesota, to Gerhard and Veronica Mertesdorf. He died May 12, 2026, in Hennepin County, Minnesota.

Duane’s life – like Duane himself – was full of adventure, conflict, and the occasional improbability. Raised on a farm in Nicollet, Minnesota, with his five brothers and sister, he grew up with mud on his boots and a deep love of the outdoors. Hunting and fishing weren’t hobbies so much as a lifelong passion, one he kept up for as long as he was able.

Duane entered the Army during the Vietnam War and served a three-year tour. His military experience left a mark that never faded and shaped the people around him. He returned home with a head injury after a fall from a helicopter and with memories that did not pack neatly away.

Duane started his post-military life in Vernon Center along with a career in insurance sales with Mankato area’s Farm Bureau Insurance. He married twice and was the father of three children: April, Nick, and Kristy. He had nine grandchildren. Duane could be fiercely determined – sometimes to a fault – and the mix of untreated or poorly treated mental illness, trauma, and brain-injury side effects strained relationships over the years. He often struggled to acknowledge fault or apologize, yet he could also pivot quickly past conflict, even when others needed more time. These traits were even evident in his card-playing.

Following his second divorce, Duane hit the road – sometimes literally – traveling the U.S. by RV and taking frequent, extended trips to Mexico. He eventually settled on acreage in Janesville, where he loved long rides on his Harley, watching the birds, and (from time to time) an unplanned interaction with the local authorities, usually connected to the ways his mental health struggles surfaced.

Duane was famous in the family for having more lives than a cat. He survived Vietnam; a horrific, helmet-less Harley crash that caused another brain injury and left him in a coma for 31 days; sepsis from a ruptured appendix; dementia; heart attacks; a brain aneurysm; months-long disappearances tied to mental health; and countless moments of unnecessary risk-taking, including a frigid swim to shore (and hypothermic walk home) after his snowmobile broke through a frozen river. If there was a hard way to do something, Duane had a knack for finding it – and surviving it.

In his final years, Duane lived in a memory care unit near family, watching birds from his first-floor window and alternating between the History Channel and old movies. True to form, he once managed a successful escape via an elaborate plan that involved a taxi – after earlier attempts with a moving company had been intercepted.

Duane’s passing followed a final head injury from a fall. He could not recover after the surgery needed to relieve pressure on his brain.

Duane was surrounded by his children at his passing. He never lost faith in his children and, we are certain, he was very pleased they were all there, together, in his final moments.

The family gratefully acknowledges Duane’s many caregivers over the years. On his behalf, they offer an apology for many difficulties that arose, and sincere thanks for the care, patience, and steadiness you provided

Duane was preceded in death by his parents, Gerhard and Veronica Mertesdorf, his brothers Jerry Mertesdorf, Gene Mertesdorf, Leon Mertesdorf and sister Carol Christenson. He is survived by his children April Rothe (Christian), Nick Mertesdorf (Val), and Kristy Willis (Matt), his nine grandchildren, brothers John Mertesdorf and Glenn Mertesdorf and many nieces and nephews.

In lieu of flowers, memorials can be directed towards one of the following organizations: 22 2 None   www.222none.org/donations  Wounded Warriors United of Minnesota www.wwumn.org or Nicollet Conservation Club nicolletconservationclub.com 

An informal gathering of Duane’s family and friends will be held at The Loose Moose Saloon in Mankato, MN (119 S. Front St.) on Saturday, May 16, from 3 to 5 PM and will include food and beverages. A private family burial will be held at Fort Snelling National Cemetery at a later date.