Marie Elizabeth Watkins was born in Ray County, Missouri, on January 11, 1854. She was the sixth of eleven children born to Charles Allen Watkins and Henrietta Rives Watkins. The Watkins family lived in a large country house they called Westover. Marie’s father was a farmer and successful businessman. He developed property and businesses such as a brickyard, flour mill, sawmill, store, and large warehouse with his uncle, James R. Allen.

Marie was educated at home by governesses and at private schools in nearby Farmville. Later, she attended Richmond College in Richmond, Missouri, along with her younger brothers. Marie was clever and intellectual. She loved reading and thinking about literature. Sensitive to nature, she preferred the country to city life. She was also skilled at running a household, although she longed for something beyond the many domestic tasks she had to take on when her mother became ill and needed her help.

Marie tutored her brothers in preparation for their admission to the University of Missouri. One of her brothers, Charles, became best friends and roomed with Robert Burett Oliver, a law student from Jackson, Missouri. In 1874, Charlie died and Robert began writing Marie’s family. Marie and Robert exchanged letters for two years before meeting in October 1876 during a visit to St. Louis. A strong affection grew between them.

After a long courtship and engagement, Marie Watkins and Robert Burett Oliver were married at Westover on December 10, 1879. Marie moved with her husband to Jackson, where he worked as a lawyer and was elected to the Missouri Senate in 1882. For the next seventeen years, the Olivers lived and raised their family of five boys and one girl in Jackson. It was during these years that Marie Oliver began volunteering in her community.

In 1896, Marie Oliver moved once again, this time to nearby Cape Girardeau where her husband established his law firm. They built and lived in a home they named Oliver Heights. In 1904, Oliver joined the Daughters of the American Revolution (DAR), a national organization with local chapters. In 1908, Oliver’s volunteer activities took an historically important turn. The state DAR noticed that Missouri did not have an official flag. Though the state seal, which contains the Missouri coat of arms, had been officially adopted in 1822, there was still no official flag. The DAR appointed Oliver chairperson of the committee to research and design a flag for Missouri.

Devoted to her task, Oliver wrote to the secretaries of state of every state and territory in the union, seeking information about how other states had designed their flags and had them officially adopted. Once she had gathered enough information, Oliver designed a flag that she thought would represent Missouri. She worked her design around the Missouri coat of arms.

Marie Oliver then asked her friend Mary Kochtitzky, an artist from Cape Girardeau, to paint a flag showing her design. This paper flag was brought to the State Capitol for viewing in 1908. After drafting a bill to have the flag made the official flag of Missouri, Robert Burett Oliver sent the bill to his nephew, Senator Arthur L. Oliver, who introduced it in the Missouri Senate on March 17, 1909. The bill passed in the Senate but failed to pass in the House of Representatives. Senator Oliver reintroduced the bill two years later. Again, it passed in the Senate but failed in the House because the General Assembly was considering another flag design. The competing flag, known as the “Holcomb flag,” was designed by Dr. G. H. Holcomb. Many people opposed the “Holcomb flag” because it looked too similar to the United States flag and did not show Missouri as an independent state.

Disaster struck in 1911. The Missouri State Capitol burned, destroying Oliver’s original paper flag. Oliver and another woman, Mrs. S. D. MacFarland, worked together to sew a second flag. This one was made of silk. On January 21, 1913, the Oliver Flag Bill was introduced in the House of Representatives. It passed on March 7 and was quickly signed by the Senate, which sent it directly to the governor. Governor Elliott Woolfolk Major signed the bill, making the Oliver flag the official flag of Missouri on March 22, 1913.

For many years, Marie Oliver kept the silk flag in a drawer in her home. She would take it out and proudly show it to interested people. In 1961, her son Allen gave the silk flag to the State of Missouri. The flag was on public display for many years, until it began to show signs of disintegration and was put into storage. In 1988, on the flag's 75th birthday, elementary students from around the state raised enough money to restore the flag. The restored flag is now on display in the James C. Kirkpatrick State Information Center in Jefferson City.