author
b. 1873
A practical early-20th-century writer on nutrition and health, she published books that mixed dietary advice, cookery, and a strong belief in rational living. Her work speaks to readers interested in the history of food, wellness, and everyday self-care.

by Dora C. C. L. (Dora Cathrine Cristine Liebel) Roper
Born in 1873, Dora Cathrine Cristine Liebel Roper published health and food books under the name Dora C. C. L. Roper. Project Gutenberg lists her as the author of Scientific Feeding, Vegetarian Supplement to Scientific Feeding, and Food for the Traveler: What to Eat and Why.
Her books present diet as something that could be studied, planned, and used to support health in daily life. On the title page of Food for the Traveler, she is identified as "D.O.," and the book was printed in Oakland, California, in 1916. The surviving editions show a writer interested in nutrition, food economy, meal planning, and the practical side of caring for individuals and families.
Because reliable biographical information about her life appears to be limited online, much of what can be confirmed comes from her published works rather than from detailed personal records. Even so, those books leave a clear impression of an author who wanted to make health advice usable at the table, not just in theory.