! and 2 are I think the same grasshopper Dissosteira pictipennis The Californian Rose Winged Grasshopper with 1 being an adult and 2 a third or fourth instar nymph. Number 3 is a late instar nymph as well and I'm not too sure about it but It could be Melanoplus devastator The Devastating Grasshopper.
Please bear in mind that I am located in the UK and you will find people with far better knowlege nearer to you.
You were extremely close. It was the california sulfur winged one. I'm surprised you found a similiar one even without seeing its wings. Thank you for I wouldn't have been able to identify it if you hadn't helped me.