Thomas Hopkins Gallaudet
While in Great Britain, he met Abbé Sicard, head of a school for deaf people in Paris, and two of its deaf teachers, Laurent Clerc and Jean Massieu. Sicard asked Gallaudet to go to Paris to study the school's ways of teaching the deaf. Gallaudet studied with Sicard. He learned sign language from Massieu and Clerc, who were both graduates of the school.