| Timeline |
| 1863 |
Born 6 September in Philadelphia |
| 1884 |
Enrols in the School of Design for Women in Philadelphia |
| 1885 |
Studies at the Pennsylvania Academy of Fine Arts under the militant Thomas Eakins |
| 1888 |
Graduates from Pennsylvania Academy of the Fine Arts |
| 1889 |
Works in the production department of The Ladies' Home Journal
|
| 1894 |
Accepted as a student of Howard Pyle at Drexel Institute of Arts and Sciences |
| 1898 |
First illustration published in St. Nicholas |
| 1905 |
Settles together with Violet Oakley and Elizabeth Shippen Green in a shared studio/home they call 'Cogslea' |
| 1917 |
Begins a 15 year long assignment doing covers for Good Housekeeping magazine |
| 1933 |
Travels to Europe |
| 1935 |
Dies 3 May in her sleep |