author
Best known today as the co-author of the early 20th-century textbook Composition-Rhetoric, she helped shape practical writing instruction for students. Her surviving public record is slim, but the work itself has remained accessible through major digital libraries.

by Stratton D. (Stratton Duluth) Brooks, Marietta Hubbard
Marietta Hubbard is credited as the co-author, with Stratton D. Brooks, of Composition-Rhetoric, a school text first published in the early 1900s and still preserved in modern digital editions. The book was designed to help students write with clarity and force, focusing on description, narration, exposition, and argument.
Although widely available library and book records confirm her authorship, they offer very little biographical detail about her life beyond that collaboration. Because of that limited record, she is best understood through the influence of Composition-Rhetoric itself, which has continued to circulate through resources such as Project Gutenberg, Google Books, and library catalogs.
For listeners interested in the history of writing instruction, her name is tied to a period when composition manuals aimed to make effective expression a teachable, everyday skill. Even with so little personal information surviving online, her work remains part of the long tradition of English-language rhetoric and classroom writing guides.