Georges took in Swiss women who were training as governesses; after a ten-year acquaintance, one of them, the Protestant French-Swiss Euphémie Bornet (1847–1923), married Paul E. E. Barbier in 1872.
[2]: 51 Barbier's work as Chairman of the Library Committee was particularly noted, and he had a significant influence on the acquisition of medieval French manuscripts by the university.
[7] Barbier's wife Cecile, meanwhile, was part of a Leeds committee for sending gifts and parcels to University employees serving in France.
[7] Barbier was best known for his lexicographical research, reading widely in search of interesting words and useful citations[10] (including during meetings of the University Senate).
[10] On his death left a vast, unpublished dictionary of French, the manuscripts of which are held by Leeds University Library's special collections.
[13][14] In his commitment to encouraging Celtic Studies, Barbier followed in his father's footsteps;[3] already in 1897 he had addressed the Eisteddfod on 'The Age of Owain Gwynedd'.
[15] When in 1925 J. R. R. Tolkien left Leeds for Oxford halfway through delivering a two-year course on Middle Welsh, Barbier completed the supervision of the course's sole student, Brian Woledge.