Mary Kelly 1886-1940

[myluck!]

There is a "Petition for Naturalization" form online for William John Sinnott which I believe is the correct person being searched for. 
He is a janitor at Bridgeford and it is dated Oct 07 1919.

One of the people who signed on William's behalf was a Patrick J Kelly

He names his wife as named Mary; "she was born on the 26 day of March anno Domini 1883 at Stocktown, Ireland" however the word Stocktown is my interpretation and requires clarification

Five children are named
John (Bernard) b. Jan 20 1906 (d. Jan 13 1991)
William (Thomas) b. Sep 11 1907 (d. Dec 1983) bap.Sep 13 1907 Elizabeth N.J.
Francis (Patrick) b. Oct 29 1910 (d. Nov 27 1970) bap.Jan 02 1910 Elizabeth N.J.
James (Joseph) b. Mar 24 1914 (d. Mar 03 1983)
Josephine b. Mar 17 1918
details in brackets are not on this form but from other searches
baptisms show mother's maiden name as Mary KELLY

[Allison Sinnott]

Not right one. Sounds right but Mary Kelly came alone and Williams middle name was Thomas

[heywood]

Not right one. Sounds right but Mary Kelly came alone and Williams middle name was Thomas

Where did Mary settle? Is she the one on the ship's manifest?

Do you think that should be Strokestown? ( but that's Roscommon)

[myluck!]

There are baptism records on line for Francis and William showing Mary Kelly as their mother

[myluck!]

Do you think that should be Strokestown? ( but that's Roscommon)

I also wondered that but not sure

[Allison Sinnott]

However some records also show a different last name spelling.

[heywood]

Not right one. Sounds right but Mary Kelly came alone and Williams middle name was Thomas

If the ones posted are not the right ones, do you have a census for your Sinnotts so we would know where to look?

[myluck!]

However some records also show a different last name spelling.

Spelling variations of names are not unusual at that time due to lack of literacy
Sinnott can be spelt with many variations and also transcribed incorrectly
I would look at the information that you have that is true and proven and start there and keep an open mind about all information you investigate after that

As suggested by heywood - let us know what you have specifically - especially census or civil record information to start off with

[Allison Sinnott]

I had one post that was. It was a link to a record from leitrim county and it narrowed it down according to how old she was.