Pat: I searched the Ellis Island and Castle Garden websites, which have records of passenger ship arrivals in New York, for William Westwood. Nothing on either site. However, not all New York arrivals are on those sites, and William and his wife might have entered the U.S. through another port--such as Philadelphia, Baltimore, or Boston. I think you need to locate Willie Westwood and his wife on a passenger list to narrow the search.
But if I had to pick one state in the U.S. for George A. Westwood's birth circa 1891, given the information about his father's occupation, I would have to pick Pennsylvania, my home state. It was the center of the steel industry at that time, and Pittsburgh, in the western part of the state, is where most of the blast furnaces (and the rest of the steel industry) were located, all being bought up by Andrew Carnegie.
Until 1906, BMDs in Pennsylvania were registered at the county level. There are 67 counties in Pennsylvania. Pittsburgh is in Allegheny County, and the birth records for the county are now located at the Carnegie Library in Pittsburgh. The url of for the BMD page on the library's website is:
http://www.clpgh.org/locations/pennsylvania/BirthDeathRecords.htmlA lookup by the library is cheap (about 2 and a half pounds). This is what the library has for Allegheny County and several municipalities within it:
Birth Registers
City of Pittsburgh (1870-1905)
Allegheny City (1885-1905)
...................This is now part of the city of PittsburghAllegheny County (1893-1905)
...............Countywide records begin only in 1893McKeesport (1892-1905)
Sewickley (1896-1905).
Wilkinsburg (1899-1905)
Slim pickins, as they say. But it's a start. Bear in mind that this is just educated speculation. George might have been born in another state altogether.
Regards,
John