Where can i find a full list of Croix de guerre recipients ?

I have a relative member called Thomas Hagger, he was a sargent in the first world war and saved the lives of hundreds by fixing a water purification system and stopping them from getting life threatening diseases by drinking it. The president of france and the king awarded him the Croix de guerre, but i can never see his name on the internet or any lists that i have seen, any help?