Gabrielle Mechain

My grandmother came from France she was born December 31,1924 her husband was joseph Hafey my mother Josette and Gabrielle came to USA in September 1946.they both died before I was ten and I've been searching a long time but can't find their family lines on my grandmothers side I believe her father was George Mechain he died in his 30s and Helen Mechain she had three brothers Paul joseph ronalald any help would be great