Her husband died of cancer in 1984 at age 76.
Her role as a mother and wife -- in which she held lavish holiday dinners complete with roasted turkey and sweet potatoes topped with marshmallows, and ironed and cleaned as most women in her day -- didn't slow her activism.
In 1969, Mrs. McMillan was elected president of the Baltimore chapter of the NAACP after she defeated Juanita J. Mitchell, who sought the post after her mother, Lillie M. Jackson, decided to step down after holding the post for 34 years. Mrs. Mitchell's husband, Clarence Mitchell Jr., was director of the NAACP's Washington bureau and the group's Capitol Hill lobbyist.
Mrs. McMillan's victory was considered an upset because of the Mitchell-Jackson family's long grip on the local civil rights group. Mrs. McMillan, who was 65 when she assumed the post, said she wanted to reach out to young "black militants" who felt out of the organization's work, according to an article that appeared in The Evening Sun. "I've been a militant all of my life," Mrs. McMillan said in the article, "but I am not extreme."
In addition to leading the Baltimore branch and the Maryland state conference of the NAACP, Mrs. McMillan held the title of NAACP national president for many years. The role at the time was largely ceremonial, but Mrs. McMillan wielded a considerable influence over the organization's national policy and its daily operations.
A diligent fundraiser, Mrs. McMillan baked peach pies and sold $1 lapel pins so the NAACP could move its national headquarters from New York to Baltimore.
The pins, which stated, "I gave" and "NAACP," were wildly popular and netted the organization $150,000.
Every opportunity, she hawked the pins. Mrs. McMillan, a teacher and administrator in the city schools for 35 years, brought the same sense of activism to that job, successfully lobbying as a teachers union president against a law that allowed "colored" teachers to be paid less than white teachers.
Mrs. McMillan, who is listed in the Women's Hall of Fame in the Maryland State Archives, stayed active in civil rights well into her golden years. In 1985, she led a protest against South Africa's apartheid system in front of the country's embassy in Washington. In 1998, she joined NAACP leaders in Atlanta for the group's annual convention.
"She was an extremely effective force at the convention," said Mr. Mfume. "Everybody dropped everything just to say hello to her. No one thought she would make it there at her age, and when she did, no one expected her to be as spry as she was. She was still active, still holding meetings, still giving advice -- solicited or unsolicited."
She drove until her late 80s, her granddaughter said, and attended church at Calvary until she was 96.
Mr. Mfume said he was with the family Friday when loved ones celebrated Mrs. McMillan's birthday. "We were just kind of happy about the fact that she made another year," he said.
On the block of 26th Street where the NAACP's Baltimore branch headquarters is located, a street sign reads "Enolia P. McMillan Way." The city headquarters was named after Mrs. McMillan in 2000.
NAACP Baltimore branch President Marvin "Doc" Cheatham, who referred to Mrs. McMillan as "Mrs. Mac," had placed a framed photo of her above the archway of the building's main entrance as a reminder to members of her legacy.
"There has always been pictures of the presidents on the wall, but I just thought her photo belonged in the most important place in that building for everyone who left that building to remember Mrs. Mac," he said yesterday. "She was remarkably strong."
1927: Enolia Pettigen becomes a teacher in Caroline County after earning a degree at Howard University and in 1928 becomes principal of Pomonkey High School in Charles County.
1933: Earns a master's degree from Columbia University. Her thesis topic: "The Factors Affecting Secondary Education for Negroes in Maryland Counties." She uses the thesis to crusade for better pay and facilities for black teachers and students.
1935: Returns to Baltimore to teach in the city schools and helps to reactivate the city chapter of the NAACP; marries Betha D. McMillan
1954: Becomes one of the first black teachers assigned to a formerly all-white school after school segregation is outlawed.
1969: Elected president of the Baltimore chapter of the NAACP and holds the post for 15 years.
1984: Becomes first female national president of the NAACP.
1986: NAACP moves its national headquarters from New York to Baltimore.
Nicole Fuller and Kelly Brewington
Sun researcher Paul McCardell contributed to this article.
Originally published Oct. 25, 2006