Dorey Family Genealogy Forum
There were Doreys in the Channel Islands long before the British came to Canada. There is also information to suggest that the Dorey's in Nova Scotia came from the East of France. However my great grandfather, Francis Dorey, appears in the 1871 census for Ontario as "French" in Ganonoque, and his name may have been an anglicization of Doré. This suggests two streams of unrelated Doreys.
I have never heard of any English attempt to phase out French names, however at a time when literacy was a rarity in Canada names were spelled differently, often phonetically, depending on the ear of the writer. The same happened to the Scots immigrants who were subjected to a wide range of spellings of the same name.
Your William Dorey may be related to my Francis, depending on where in Canada he lived.