This is just one more instance of someone claiming an undocumented source is evidence of something.
The immigration Service probably didn't even consider whether Obama may not have been born in the USA, but may have wondered if the child was Obama Senior’s, since they were wondering if the marriage was a sham.
Here is a map showing the two purported home addresses and the hospital. Not really a big deal, just trying to be of service :-).
http://oi54.tinypic.com/5yt4rm.jpg
The date on the memo is August 31, 1961 and says that Obama’s spouse (Stanley Ann) was living with her parents in Hawaii. Both Maxine Box and Susan Blake have stated that Stanley Ann was in Seattle in August of 1961. Mr. Wood did not even bother to check.
The handwritten note is useless as far as information content and only shows in combination with other documents in the file that Obama Sr. was dishonest and untrustworthy.