A native of Ormskirk, Lancashire, was educated at Douay College, and at the English seminary of St. Gregory in Paris.
When the seminary was dissolved he went to the college of St. Omer, of which his great-uncle William Wilkinson was for some time president.
[2] Fletcher was one of the professors at St. Omer throughout the imprisonment of the members of the college, at Arras and Dourlens, after the French Revolution.
On their release in 1795 Fletcher accompanied them to England, and was successively missioner at Hexham, Blackburn, and Weston Underwood.
[2] Fletcher became chaplain to the Dowager Lady Throckmorton, and served the mission at Leamington.