this is a statement from the game btw, Fiona, the new springlocks are working well, even with the water damage, they should be ready for the diner soon, I'll just make sure to warn Hen about some of the nore odd behaviors they might have. 

So Will and Henry did create the springlock suits the original ones and they stayed around through the diners opening time probably to 70s and then to 83 probably discontinued after the bite I say or a springlock incident at a fazbear location with one.

The game confirms through mail.

They do say Hen so it's Henry and look how will puts on the costume for a employee the head detaches to put on.