Who is David William Desmond? The Psychologist, Writer, and Life of Maryanne Trump Barry’s Ex-Husband

David William Desmond was an American psychologist, brain researcher, and book writer. He lived from 1934 to 2006. Most people know him because he was married to Maryanne Trump Barry, the older sister of Donald Trump. But David was much more than just a family connection. He built his own life through hard work, smart thinking, and creative writing. He studied how the brain works, helped many patients, and later wrote funny books about rich people. His story shows that you can make your own path, even when you are close to a very famous family.
Quick Bio Table
| Detail | Information |
|---|---|
| Full Name | David William Desmond |
| Date of Birth | February 4, 1934 |
| Place of Birth | New Jersey, United States |
| Date of Death | January 17, 2006 |
| Age at Death | 71 years old |
| Nationality | American |
| Education | University of Chicago (Behavioral Sciences), Ph.D. from Fordham University (Psychology) |
| Profession | Psychologist, Brain Researcher, Author |
| Known For | Stroke and Aging Research Project, Oliver Booth novels |
| First Wife | Maryanne Trump Barry (married 1959, divorced 1980) |
| Second Wife | Lisa Renee Aitken (married 1992) |
| Children | David William Desmond Jr. (from first marriage), Robert Desmond (from second marriage) |
| Famous Books | The Misadventures of Oliver Booth (2008), Oliver Booth and the Evil Socialite (2013) |
| Places Lived | Palm Beach, Florida and Paris, France |
Early Life and Education
David William Desmond was born on February 4, 1934, in New Jersey. He grew up in a family that loved learning and education. From a young age, he was curious about how people think and act. This interest led him to study the human mind.
He went to the University of Chicago, where he studied behavioral sciences. This is the study of why people do what they do. After that, he continued his education at Fordham University in New York. There, he earned his Ph.D. in psychology. He also completed special training at the Neurological Institute of New York, where he learned about brain diseases like stroke and dementia.
Career as a Psychologist and Researcher
David Desmond worked at Columbia-Presbyterian Medical Center in New York. He was part of the Neurological Institute, one of the best places for brain research in America. His main job was to study how strokes affect the brain and memory.
He became the leader of the Stroke and Aging Research Project. This was a very important study that looked at stroke patients in hospitals. The research helped doctors understand why some people lose their memory after a stroke. It also showed which patients were more likely to develop dementia, a condition that affects thinking and memory.
His work found that older age, diabetes, and how serious the stroke was could increase the chance of memory problems. These findings helped many doctors treat their patients better. David wrote many research papers that other doctors and scientists still use today.
Marriage to Maryanne Trump Barry
In 1959, David Desmond married Maryanne Trump Barry. She was the oldest child of Fred Trump, a rich real estate businessman, and the sister of Donald Trump. Their marriage brought David into one of the most well-known families in America.
David and Maryanne had one son together. They named him David William Desmond Jr. The family lived together for about 20 years. However, in 1980, they decided to end their marriage. Their divorce was peaceful and friendly. After the divorce, Maryanne became a very successful federal judge, while David continued his work in psychology.
Even though he was connected to the Trump family, David chose to stay away from the spotlight. He did not want fame or attention. He preferred to focus on his research and his own achievements.

Second Marriage and Later Life
In 1992, David married his second wife, Lisa Renee Aitken. She was the daughter of Frank E. Aitken, a retired executive from Exxon. They got married at St. Thomas Church in New York City. Lisa had studied at Southern Methodist University and was working on her MBA at New York University when they met.
David and Lisa had one son named Robert, who was born in the mid-1990s. The family lived between two beautiful places: Palm Beach, Florida, and Paris, France. This lifestyle gave David many ideas for his later work as a writer.
From Brain Scientist to Funny Book Writer
Later in his life, David made a surprising change. He went from being a serious scientist to becoming a humor writer. Living in Palm Beach and Paris, he watched wealthy people and their strange habits. He decided to write funny stories about them.
His first book was called The Misadventures of Oliver Booth: Life in the Lap of Luxury. The story is about Oliver Booth, a shop owner who desperately wants to be part of the rich and famous crowd in Palm Beach. The book won several awards, including the USA Book News Best Humor Book Award and the Next Generation Indie Book Award.
Even Donald Trump praised the book. He wrote: “David Desmond has written a hilarious tale based on his insider’s knowledge of life in Palm Beach and Paris. It should be a big success.” Famous comedian Joan Rivers also said nice things about the book.
Five years later, David wrote a second book called Oliver Booth and the Evil Socialite. This book continued the funny adventures of Oliver Booth with new colorful characters. David also wrote a humor column for the Palm Beach Daily News, where he shared his funny thoughts about high society.
Death and Legacy
David William Desmond died on January 17, 2006. He was 71 years old. His death was quiet, just like his life had been.
He left behind an important legacy. His research on strokes and dementia still helps doctors today. His funny books continue to entertain readers. Most importantly, his life story teaches us that true success does not come from being famous. It comes from doing meaningful work, caring for your family, and staying true to yourself.
Conclusion
David William Desmond lived a full and interesting life. He was a respected brain scientist who helped us understand stroke and memory loss. He was a creative writer who made people laugh with his clever stories. And he was a family man who valued privacy over fame. Though he was once married to Donald Trump’s sister, he built his own identity through hard work and talent. His story reminds us that you do not need the spotlight to live a meaningful life. What matters most is the positive impact you leave behind.
Frequently Asked Questions
1. Who was David William Desmond?
David William Desmond was an American psychologist, brain researcher, and book writer. He was born in 1934 and died in 2006. He is known for his important research on strokes and dementia, and for writing the funny Oliver Booth books.
2. How was David Desmond connected to the Trump family?
David was married to Maryanne Trump Barry from 1959 to 1980. She is Donald Trump’s older sister. This made David the brother-in-law of Donald Trump during their marriage.
3. What books did David Desmond write?
David wrote two popular satirical novels: The Misadventures of Oliver Booth: Life in the Lap of Luxury and Oliver Booth and the Evil Socialite. Both books are funny stories about wealthy people in Palm Beach and Paris.
4. Did David Desmond have children?
Yes, David had two sons. His first son, David William Desmond Jr., was born during his marriage to Maryanne Trump Barry. His second son, Robert Desmond, was born during his marriage to Lisa Renee Aitken.
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