
Marge's family are fairly recent to Springfield (The Simpsons), although she claims to be a third-generation Springfielder. The family originally chose to settle in Springfield rather than Stenchburg because they admired the life story of Jebediah Springfield.
As a child, Marge developed a fear of flying after being shocked to learn that her father was an airline steward for Braniff Airlines instead of the pilot he claimed to be. (Ironically, she had also harbored aspirations of becoming an astronaut, although this was most likely a passing fancy or a case of a little girl playing dress up). On her first day of school, she was teased for having a lunch box with a picture of The Monkees on it.
Marge is a talented painter. She had an intense crush on Ringo Starr, and painted several portraits of him (including one in which they are depicted as married) and wrote to him as a teen, but received a response only 25 years later. This inspires her to enter an art contest. While in that art contest, her portrait of a drunk Homer asleep on the couch won a competition against two other paintings.
Marge claims her most famous moment occurred in high school when she and her friend Chloe worked on the school paper, and busted a young Moe Szyslak, then a cafeteria worker who spat in some soup to "teach them to give him his first job outta prison".
After high school, before marrying Homer and birthing Bart, Marge worked as a "roller-waitress" at a drive-through restaurant. She briefly returned to her job years later after Homer was fired from the plant, which encouraged Homer to return to work as he should be the main breadwinner of the family. She sometimes collects unemployment benefits from her short lived jobs.
Marge has two older sisters, twins Patty and Selma (both also voiced by Kavner). Her father, a former flight attendant and baby photographer, died as a result of a freak roller coaster accident. Her disapproving mother, Jacqueline, is still alive but rarely seen. All female members of the Bouvier family (except Marge) are heavy smokers with gruff voices and sarcastic, snarky demeanors. None of the other Bouvier family members approve of Marge's marriage to Homer.
Marge apparently makes very bad ice-cream sundaes, though she is otherwise a highly regarded cook. She is especially celebrated for her pork chops. She manages to nourish her entire family with only twelve dollars a week (She pads Homer's food with sawdust). She also prepares various commemorative hams, including an emergency ham, a condolence ham, an earthquake ham and a celebration ham. Her specialty, which she makes to celebrate Bart's best dental check-up ever (only three cavities) is butterscotch chicken.
In spite of her image as a stereotypical sitcom mother with relatively high morals, Marge, who can appear naive and gullible, has her share of escapades to the disdain of Springfield's less forgiving residents. She once had a tumultuous stint as a police officer in the Springfield Police Department, took classes for road rage, was jailed for "misdemeanor shoplifting", became a gambling addict, showed alcoholic tendencies, engaged in a memorable cross-country police chase (à la Thelma and Louise), had sex with Homer at a miniature golf course (resulting in the couple running about completely naked, and eventually being photographed on a football field in broad daylight, to which a humiliated Marge grumbles, "It would have to be camera day..."), briefly became addicted to steroids which caused her to fly into violent rages whenever something made her mad in "Strong Arms of the Ma" and mistakenly received breast implants (in "Large Marge"). These are just some of the strange situations in which Marge has found herself. She also displays a surprisingly strong will. In "The Joy of Sect", she escapes brainwashing by the Movementarian Church, and in "Bart-Mangled Banner", while in prison, she questions Lisa when Lisa begins losing her beliefs after watching propaganda cartoons. Marge is the only member of the family who actively encourages church attendance. She also appears to have significant athletic ability, as seen in her escape from the Movementarian cult.
Politically, Marge generally aligns with the Democratic Party. She once mentions that she voted for Jimmy Carter ("twice" according to Lisa) and supported the candidacy of their state's progressive governor Mary Bailey, and also claimed to have been extremely depressed when Lyndon Johnson died.
It was revealed in the episode "The Way We Weren't" that Marge first met Homer when they were 10 years old, attending summer camp. Although she never knew his real name (he told her it was "Elvis Jagger Abdul-Jabbar" because Patty had said that "Homer" was a stupid name), they shared a brief mutual attraction. The short relationship ended when Homer did not show up for a date, leaving Marge heartbroken. It was later revealed that the stand-up was entirely unintentional, as Homer had fallen off a cliff and gotten trapped in a fat camp at the time.
Marge briefly participated in student activism as a teenager in high school. After engaging in her only protest, she is forced to serve school detention, where she happens to meet Homer for the second time (although she did not recognize him from their earlier courtship at camp). Marge then tutors Homer on French, and they start dating. Marge becomes pregnant with first child Bart, in her mid- to late twenties. Consequently, she and Homer marry, in a low-budget wedding at a combined wedding chapel and casino across the state line. This is often contradictory as in some episodes it appears Marge gets pregnant right out of high school, but since Marge at the youngest is 34 and Bart is 10 than means she couldn't have gotten pregnant before age 23.
Besides Homer, Marge has had a number of admirers, including C. Montgomery Burns, Springfield Isotopes player Flash Baylor and high school classmate and ex-millionaire Artie Ziff (who recently got over her and is now interested in Marge's sister, Selma). Probably Marge's most persistent admirer (who never seemed to get completely over her) is Homer's friend and pub owner Moe Szyslak. On several occasions Moe has tried to steal Marge from Homer. His first attempt occurs in Season 5 ("Secrets of a Successful Marriage"), and his most recent attempt occurs on a flight to Aruba in Season 16 ("Mommie Beerest"). Moe's and Marge's love-hate relationship has become a recurring gag.
Her favorite dishes are buttered noodles, julienned potatoes and peach crumble. In the episode "Burns, Baby Burns", she mentions that spring and winter are her favorite seasons, followed by autumn.