Gender of 5 week olds

[StickInsect123]

Hi, I have 3 light Sussex x silver laced Wyandotte chicks who are almost five weeks old, just wondering if anyone could help determine their genders?
Thanks in advance!

 

[Buckeye Amy]

#3 is a cockerel, the rest look like pullets to me.

 

[CascadiaRiver]

Only 5 weeks old? I think #1 is a cockerel too then, that's a lot of comb for 5 weeks. Honestly, I would keep an eye on all of them and give it a few weeks but I'm a bit suspicious of them all

 

[Chicalina]

I need to see comb of no.3.

No. 1 is probably male.