I'm not finding a hatchery that offers Dark Brown Leghorns. Most just offer "brown" Leghorns which are picturing the light variety.
Where did you get yours from Anira?
1st bird - Silver Laced Wyandotte
2nd bird - Its going to be hard to tell if we don't know what hatchery your TSC orders from. Not a brown leghorn because the legs aren't yellow. Possibly a partridge rock but the pattern isn't quite right. Can you call the TSC and ask who they order from?