In the late 1930s, Ryan left Richie Farm in Loki and set up his own family in Harlingen, Texas and Danbury, Connecticut. She finally stopped writing novels and spent the rest of her life writing and promoting her personal freedom philosophy. She became one of the most influential liberals in America in the mid-20th century. Over the years, Roland and her husband have often lived alone at Richie Farm in Loki. Most of the surrounding land (including the property built by Ryan for them) has been sold, but some livestock are still raised to take care of flower beds and vegetable gardens. Almost every day, groups of readers come to visit, eager to see the "Roland" Roland couple in the story of "The Cabin", who live together and have no worries about the economy. 1949, Amanle died at the age of 92. Roland was very sad, but determined to live independently and stay on the farm, and refused Ryan's request to let his mother live with her in Connecticut for a long time. For the next eight years, she lived alone and was taken care of by her neighbors and friends. These people can't believe that their "Mrs. Wilder" is a world-famous great writer. Everyone in Mansfield knows her. She will ask the driver to take her to town, church or visit friends regularly. At that time, she often corresponded with editors, readers and friends.

In the 1950s, Ryan often went back to Missouri to spend the winter with his mother. On one occasion, Roland flew to Connecticut to visit Ryan. 1956 In the autumn, Ryan went to Mansfield for Thanksgiving and found that her 89-year-old mother was seriously ill with undiagnosed diabetes and heart failure. After staying in the hospital for several weeks, the situation seems to have improved, enabling Roland to go home on the second day of Christmas. However, she is old and seriously ill, and her health has deteriorated rapidly since then. But Roland's spirit is extremely tough, just like a back-to-school child. She once told many people that she would live to be 90, "because Oman is happy to live to be 90". She didn't break her word. 1957 February 10, just three days after her 90th birthday, Roland Inges Wilder died in her sleep in Mansfield's farmhouse.

With the death of 1957 Roland, the right to use Loki Ridge Farm returned to the farmers who had previously purchased the surrounding land. Local residents set up a non-profit association to buy houses and land here as museums. Ryan realized that the house is a better memorial place than books, and she believed that building a museum would attract people's long-term attention to her mother's books. She contributed to buy a house and build a museum. She is willing to donate a lot of money every year to maintain and take out many items at home. This museum is very popular with people and still attracts thousands of tourists to Mansfield.

According to Roland's wishes, Ryan only inherited the copyright of the Cabin series before his death, and the copyright was handed over to Mansfield Library after his death. 1968 After Ryan died, her successor Roger McBride obtained the copyright. McBride is the grandson of Ryan's informal adoption, as well as her agent, lawyer and heir. McBride's behavior was clearly recognized by Ryan. In fact, according to Ryan's request, decades after Roland and Ryan died, when the original copyright of each book in the Cabin series and her own literary works expired, the copyright of these books continued in the name of McBride.

1995 after McBride's death, there was an argument. At that time, Roland Inges Wilder Branch of Colette County Library in Mansfield, Missouri (established with Roland's help) decided to take back the copyright of the "Cabin" series. Subsequent court hearings were held in private, but McBride's heirs retained the copyright. The library also received enough assistance and began to plan to build a new building.

Over the years, the "Cabin" series has become more and more popular, generating millions of dollars in sales, followed by a series of books (some written by McBride and his daughter) and a long-running TV program starring Michael Landon. In the TV series, Roland Ings Wilder was played by melissa gilbert (1974 to 1984), Merediz Monroe (1997 and 1998) and Kyle Chavarria (in the 2005 TV series).

Roland once said that the primary reason why she wrote these books was that she wanted to keep her childhood stories for today's children and help them understand how America changed in her time.

1993, Roland was elected to the Missouri Hall of Fame, and her bust bronze statue was permanently displayed in the rotunda of the Missouri Parliament Building.

In 2006, Roland's name was listed in Mansfield, Missouri, and David Inges, a relative of Roland, attended the celebration ceremony.