Norwegian Sailor's Home in Brooklyn

I have two questions, if someone can assist. Pardon me if this topic has been raised on this board many times. My great-grandfather Hans (Harry) Abrahamsen came to New York from Sandefjord in 1898 or 1899 on the Cymric. The manifest lists him as headed to 64 Hamilton Avenue in Brooklyn, which was apparently the Norwegian Sailor's home. Where can I find some information on this home, for example how many men it held, when it was established and when did it close, and what kind of social services (if any) it offered the newly-arrived immigrants. I did try on Google, and found some references to it in old NY Times article 'police blotter' sections- but the home is mentioned only in passing usually. I'd like to find out more about this important place. The second question is, why wouldn't my great-grandparents be listed in the 1900 census? By 1900, they were both here in the US and living in South Brooklyn. Yet, i do not find them. Maybe the name was mispelled when I try to search the indexes. Is there a method of searching the census by district instead of name? Was it common for new immigrants to be 'skipped' by the census takers? Thanks in advance...