Digging Irish roots!

This weekend I was scanning some old documents that my grandfather wrote many many years before.  After scanning quite of few files and uploading them to a new blog, I got a bit bored with this project and set it aside for the moment.  Instead, for whatever the reason, I opened the Family Search website to start searching data.  I know, I know, scanning and upload files isn't much different than searching data.  But, it was a change of pace and thought processes that I was looking for.  Upon opening the Family Search website, I notice that they had made some major changes to the appearance to the site.  I was hoping that they changed the search engine too... I entered the search data and was surprised with amount of data that came back.  I then tweaked the search data a bit and BANG, I found a record I hadn't found or seen before.  Upon opening the record, I verified the information I had just discover.  It was another piece to the puzzle of where George F Herrick's birth place was actually located.  George for some reason had told his family that he was born in Washington state.  In which, it could have been Port Angeles or Bellingham Washington.  I have records stating such locations, but when I tried to get a birth certificate, none are available.  Which is not uncommon, since record keeping has not been of great importance in the past.  So, I have always been, since 2001, suspect of his actual birth location.

Here is my evidence, thus far, for a totally different state for his birth.

1869  his mother is born in Freeport Illinois.
1873 his father arrives from Ireland and settles in Freeport Illinois.
1887 his parents marry in Freeport Illinois.
1892 his birth according to US census of 1900
1900 US census for Freeport Illinois, has him and his older bother being born in Illinois.  His is eight years old at this point, so I am pretty sure his parent knows his birth place.
1910 US census April, he was enumerated in Hawaii while at boot camp.  This is the first record of stating he was born in Washington state.
1910 US census June, he was enumerated again at his parents house in Chicago Illinois. This census records his birth place of Illinois.
1917 he marrys Grace R Whitfield of Chicago Illinios in Chicago Illinois.
1918 birth of his first born, Grace F Herrick in Illinois
1920 US census state his birth is Washington state. But, both Graces are born in Illinois
1930 US census state his birth is Washington state.  This is, thus far, the first evidence I have with George actually being in Washington state.

I have presented my evidence and conclude that George was born in Freeport Illinois in the year 1892.  I will continue to dig for his birth record.  I am hoping other family members who read this can shed some light to this puzzle from the past. 

What say you?