Is this White Rock a roo?

[Chrissayo]

Hi! I have read that Plymouth Rocks can be sexed younger based on redness of combs/wattles. Is this true, and if so, do I have a pair here? All photos are of the suspected roo only with the one photo showing both the obvious pullet and the possible roo together. About 5 weeks old.
Thank you!

 

[JedJackson]

At 5 weeks, I think it is a cockerel with that much size and color to the comb.

 

[The Moonshiner]

Ya I say cockerel also

 

[Cmp211]

roo