52 Ancestor's #39: Poughkeepsie Brick Wall (Coughlin and Duffy)

No Story Too Small has issued a New Year's Challenge: "Have one blog post each week devoted to a specific ancestor. It could be a story, a biography, a photograph, an outline of a research problem — anything that focuses on one ancestor.” 

This week's blog post is devoted to my Poughkeepsie ancestors and the brick wall that I have encountered.

My only evidence that ancestors lived in Poughkeepsie are the documents of my Great Great Grandfather William Henry Coughlin. (1872-1952)

1924 baptismal document from the Church of St. Peter

Part of the challenge of course is the various spelling of the surname Coughlin/Coughlan/Coghlan etc

Naturalization Documents

All of William Henry Coughlin's naturalization documents show Poughkeepsie as his place of birth as well.

1915 Naturalization Inquiry

In 1940 William Henry Coughlin wished "to renew his old Naturalization papers so he may get a passport to visit relatives in the States" (He had been in Canada for 42 years)

1940 Naturalization Documents

I have been unable to locate any records whatsoever regarding William Henry Coughlin's parents: Michael Coughlin and Margaret Duffy or his siblings (not mentioned in his obituary 1952).

Miscellaneous Poughkeepsie Clues

Front of post card

Back of  post card
John Coughlin?