Her work on deciphering chemical data for granite rocks led her to collect and correspond information with geologists from all around the world.
In these volumes she compiles a list of literature from the years 1914–1953 pertaining to the chemical analyses of igneous and metamorphic rocks.
Hooker also organized the literature from 1866 to 1968 that prioritized the chemical analysis of igneous and metamorphic rock in the Puerto Rican region.
[1] Hooker was also interested in writing about lesser-known histories of the geological field, such as the term Nuée ardente which she put much research into.
Her active participation towards improving the development of the geological societies led her to establish and maintain communication with other geologists from around the world.
Due to her profound contribution to the field of geology, she was honored with the position of secretary of the General Meeting from the 7th term until her death.
The back room in her home in Silver Spring, Maryland was turned into the office for the Mineralogical Society of America.