All you young ones show signs of wheaton with most also appearing to posses dark brown as well. I am guessing the cock was wheaton, at least one hen was wheaton and you have a dark dark brown hen that was very successful at producing offspring or more than one dark brown hen. Could you show pics of actual cock and hens to produce your pullets? Sometimes even chick color patterns informative. The color stuff can be fun because even experts disagree without seeing individuals and their kin. For me I had to do some test matings to see what alleles are dominant which ruled out some similar options.
. When I get back to the ranch this afternoon I will take better pictures of the hens, pullets, and a Stag that most resembles his Pops.
