I'm almost positive you have to be hired before May 2nd to get the raise.

With no written information on that outside of the announcement it's hard to say. But in all likelihood, yeah, but not the tenure bonus as well. Especially if you're starting at 19 because of cost of living in your city/state

The raise only applies if hired before May 2nd, so if a person was hired before that date at $19/hr, yes they would receive a raise. The information they’ve sent out about it says markets already at or above 15/19 will receive a 3% raise.