After graduating from York University with a B.F.A., Janet continued drawing and painting with her work being shown in more than 300 exhibitions - both group and solo - over the 45 year period. During that time, works have been selected to represent Canada at the Olympics, selected as award recipients and have also been given as awards. They have earned Ms. Hendershot Canada Council and Ontario Arts Council Grants. Many public galleries have added the work to their collections including ArtBank, the Government of Ontario, The Robert McLaughlin Gallery, etc.

Janet is active in numerous art societies and arts organization boards and serves both on exhibition committees and as exhibition chair.