| Full Name | Margaret Eloise Knight |
| Birth | February 14, 1838 |
| Place of Birth | York, Maine, U.S. |
| Death | October 12, 1914 |
| Place of Death | Framingham, Massachusetts, U.S. |
| Nationality | American |
| Occupation | Inventor |
| Known for | Inventing a machine to produce flat-bottomed paper bags |
| Notable Work | Founder of the Eastern Paper Bag Company in 1870 |
| Parents | Hannah Teal and James Knight |
| Early Life | – Showed early interest in woodworking tools as a child |
| – Witnessed an accident at a cotton mill and invented a safety device for looms at age 12 |
| Career | – Held various jobs including in home repair, photography, engraving, and furniture upholstery |
| – Received her first patent in 1870 for an improvement in paper-feeding machines |
