There are two cartouches with Ann Wheatley's name and the date of the completed sampler.
The directions say to work them in Algerian Eye, but don't say what color to use. So I looked at the photo of the original sampler, and it appears that they were stitched in sort of an olive drab color.
There isn't an olive drab listed on the materials list. So I did what any self-respecting individual in the 21st century would do. I googled Ann Wheatley sampler and looked to see what other people had done.
It appears that other stitchers have used the dark brown that the lettering is worked in.
Now, it may be due to the very doom-and-gloom verse on this sampler, but the attributions worked with the dark brown in the outline for the cartouches look like tombstones to me.
I'm not so much into tombstones.
So I made an executive decision to use the lighter of the two greens in the materials list, and this is what it looks like so far: