Totally feel like an idiot, but I've gotten to the point where I'm able to get the both Chris's & Sarah's keys but I cannot for the life of me find where to get Jessie's or Georgie's . I assume I need to find some sort of screwdriver and crowbar to unscrews vents and bust open broken vents, but I cannot find them at all.

Also, I've found the green & red doll heads , but I assume I'm not far enough in the story to use them because I saw in other posts ppl mentioning putting them on their respective color spikes.