I think the Bauffe record is right - there's an Emile of the right age born there. If the father's name on his English marriage certificate lines up we'd be gold:
Bauffe is now part of Lens but was its own commune in 1887, when an Emile Albert Loquet was born there:
http://www.rootschat.com/links/01jmd/ (acte 13)
In summary, on 5th September 1887, Victor Loquet, aged 45, a labourer, registered the birth of a male infant born 4th September, half past eight in the evening, to himself and his wife, Philomene Virginie Vasseur, aged 32, who was given the first names Emile Albert.
Oscar Paras and Leopold Dupont were the witnesses, and signed, the father of the child having declared that he was unable to read or write.
Marriage index shows that this couple married in 1875, and you can see that here:
http://www.rootschat.com/links/01jmn/ In addition to Emile there were
1874 Oscar
http://www.rootschat.com/links/01jme/ (some of document on previous page - born prior to marriage but marginal note indicates he was Victor's son and legitimised at marriage)
1877 Melanie Angelique
http://www.rootschat.com/links/01jmf/ 1879 Pierre Phillipe
http://www.rootschat.com/links/01jmg/ died 1882
http://www.rootschat.com/links/01jmq/ 1883 Adolph
http://www.rootschat.com/links/01jmh/ (top left, some detail on previous page)
1885 Marie
http://www.rootschat.com/links/01jmi/ (bottom right, some detail on following page)
1890 Francois Joseph
http://www.rootschat.com/links/01jmj/ died 1891
http://www.rootschat.com/links/01jmp/ 1892 an unnamed male infant (death record only)
http://www.rootschat.com/links/01jmo/ 1895 Jules Francois
http://www.rootschat.com/links/01jml/ 1899 Josephine Mathilde
http://www.rootschat.com/links/01jmm/ Other related records:
1894 birth of Albert Leonard, illegitimate child of Melanie Angelique
http://www.rootschat.com/links/01jmk/ 1904 birth of Fernand Adolphe, illegitimate child of Marie
http://www.rootschat.com/links/01jmr/ Fernand was legitimised by the marriage of Marie to Robert Cyrille Desmet, 13 April 1912