I'll try to get pictures tomorrow. May be awhile getting them, I have 35 to go through to find it.
The daddy was a Blue Red NN ( or whatever color you want to call him. The hens all came from EE mamas ( so they were 1/2 EE) so very well could have carried the Duckwing patterning gene ( both gold and silver in the flock). There may be another name for the pattern they had but I was told it was a Duckwing pattern. They had that classic gold coloring of a lot if EE's. Also had some that were the color of the silver leghorn with the salmon breasts.
Blue red as in solid blue body with red only on back? No red duckwing patch on the secondaries? If so that's the right name for it and breeding him over EE like you describe will throw lots of chicks that start out black or blue and get varying degrees of red or white at different ages.
The very last hen you mention exactly matches a true silver duckwing hen. Salmon breasts on hens is the ultimate proof she is duckwing and these will help you get red, silver and/or salmon duckwings down the line.