Suz,
Using down color to identify the genetic make up of a chicken is very useful.
The chicks that are eWh/eWh and Lav+/Lav+ or Lav+/lav should have normal wheaten down color. This should be a clear cream down color over the entire body of the chick.
The 1/16 lavender wheaten you may get would be a lighter color than cream wheatens.
The EE or extended black chicks will be basicly black with cream or white on their bellies and breasts. Some black may run up onto their chins.
The E/eWh Lav+/Lav+ or Lav+/lav chicks should look very much similar to the EE chicks.
The E/eWh lav/lav chick should be light blue on top and with a cream or white belly.
Your 1/16 lavender chick will be light blue all over.
When the birds get their adult plumage. The males that have the brown/gold color in the secondary feathers are the eWh/eWh birds.
The males that are heterozygous will look like the F1 male you have.
I can picture what the males will look like because I have a porcelain d\'uccle, but I\'m not sure what the lavender wheaten females would look like (hackle and body coloring
The lavender dilutes both black and red/gold. Normally wheaten females are a wheat color or a salmon-brown color with the color being lighter on the breast and becoming even lighter as the color approaches the belly and tail. Just imagine this color pattern but the lavender gene will dilute the colors making them much lighter.
Rooster