I have a Hawnt - Devereau connection; Stephen Wallace Devereau(b.1891 Douglas, IOM) married Phyllis Hilda Hawnt(b.1894 Douglas. Married in 1924 in Laxey. Stephen Wallace Devereau is son of Joseph Stephen Devereau(b.1852, bapt. St. Barnabas)and Susan Ward(bapt 1853 St. Matthews). You mentioned Devereau in your message heading but not in your description of Jordan-Hawnt. Don't know if this is of any assistance to you.