In researching lacing earlier this year, I learned that eb, Brown (from the NHs) is the basis for most single and double lacing, as well as partridge/pencilling. Obtaining a single-laced bird like your female also requires the pattern gene, (BR, begins the lacing,) melanizer, (BR, completes the lacing,) and Columbian, (NH, sends the color to the ends of the chicken or the ends of its feathers,) with your eb. If I read it right, to get a Delaware, you need the barring gene, silver, and melanizer from the BR, plus the columbian from the NH, minus the pattern gene from the BR. My source (Van Dort's Genetic of Chicken Colors, the basics,) states that the pattern gene and melanizer gene are near each other, on the same chromosome; so I would guess you have to hatch a lot of birds to separate the BR's pattern and melanizing genes in your Delawares.I was reviewing the supposed possible outcomes...of a Delaware re-creation project. I didn't see any "laced" possibilities. ...
Best wishes,
Angela