Graceanna Lewis was living with the Fussell family in Media PA in 1900. The family record starts at the bottom of the top image and continues to the bottom image. Graceanna Lewis's record is the second line of the bottom image. Notice that her occupation is listed as "naturalist".
This is the house at 402 Gayley Street in Media, PA
The next two images are from the 1900 United States Census. In the first image you will find Graceanna Lewis listed at the top of the page. Notice that her occupation is listed as "Naturalist". On the second image (which is the previous page in the actual census) you will see that she is living with Charles Fussell on Gayley Street in Media, PA)