Her collection of historic and modern papers, now housed at Harvard University, is still used by librarians, book publishers, collectors, and researchers.
The critic was Charles V. Saflund, a professional marbler, who came to her studio to give lessons about making marbled and paste papers.
Her first large commission was an order for paper to cover 550 copies of The Antigone of Sophocles, translated by John Jay Chapman and printed by Riverside Press in 1930.
The swing of Strauss waltzes helped me to move the corrugated rolling pin across the paper in time to the music and put me through what otherwise would have been real drudgery.
Loring cut out tree shapes from pieces of rubber and glued them to a rolling pin which she used to create a repeating design in the paste.
Writing to fellow collector Olga Hirsch [de], she said:[10] There seems to be little chance to buy any examples of the old papers here and the only way I have been able to get them is to import them[...] I always ask friends to pick them up for me when they go to Europe but it is slow work.She purchased paper and traded with other collectors and friends in the book trade, including Hirsch, Dard Hunter, Philip Hofer and Daniel Berkeley Updike.
They both served on the board (Gus was President from 1942 to 1951) and Rosamond was appointed Honorary Curator of Exhibitions in 1942, where she "ably and unobtrusively filled the places of those absent upon military service".
[1]: 36 She was born and raised at "Moss Hill", her family's estate in Jamaica Plain, a Boston neighborhood, where she married Augustus Peabody Loring, Jr. (1885–1951) on June 22, 1911.
Between 2003 and 2007, the staff at Harvard's Houghton Library, where Loring's collections are held, reorganized and cataloged them, making finding aids available on the internet.