After I scribed where the patch was going to be, I made several saw cuts into the leg to help with removing material:
Here is a photo of the material being removed:
The patch next to the cleaned out area in the leg:
The patch being glued in place:
this picture shows the patch in relation to the back of the chair:
The patch glued in place:
The patch carved down and sanded. As I apply finish to the chair I will touch this up to match the existing finish.