Mary Louise Alexander was born on September 26, 1946, and has built one of the more quietly influential careers in mainstream American comics over nearly five decades. Working under her married name — and commonly known to colleagues and fans as "Weezie" — she came up through editorial ranks before establishing herself as a writer of considerable range.
X-Factor #17 (1987)
Simonson's editorial work on titles including Conan the Barbarian gave her an unusually strong grounding in craft before she moved to scripting full-time. As a writer, she became closely associated with Marvel's mutant corner of the universe, producing substantial runs on X-Factor and The New Mutants during a period when both titles were central to the line. Her contributions to character creation during this era were substantial: she co-created the X-Men villain Apocalypse, the mercenary Cable, and the young hero team Power Pack, as well as the mutant Rictor.
Power Pack #1 (1984)
Moving to DC Comics, Simonson took on Superman: The Man of Steel and the spin-off series Steel, co-creating the armored hero of that name along the way. She also shares co-creator credit on Doomsday, the character responsible for Superman's death in one of DC's most discussed storylines.
Star Wars: Return of the Jedi #[nn] (1983)
ComicsAlliance recognized her cumulative impact by naming Simonson among twelve female comics creators deserving of lifetime achievement consideration — an acknowledgment that reflects how thoroughly her fingerprints mark the modern superhero landscape.