Thanks for sharing that Sorry if my tone earlier might have offended you One of the first things I note however is that you were incorrectly assuming that the John W Brown is a U S National Historic Landmark NHL It is not It is one of about 85 000 historic sites or objects and historic districts listed on the National Register of Historic Places NRHP There about 2 500 sites and objects and historic districts that are NHLs including the California Liberty ship SS Jeremiah O Brien Note the ship is included in a Wikipedia NRHP list for its geographic area but it is not included in the Wikipedia NHL list for Maryland It is understandable that you would not know the distinction But looking for the John W Brown in search screens for NHLs can not lead to success You did do well to find that Maryland Historical Trust webpage I happen to know that is a summary by them of the full NRHP nomination document from my having gone through detailed comparisons of other such webpages to actual NRHP documents which are available online for some Maryland sites including the NHL ones in consultation with editor Pubdog a while back Pubdog developed most of the articles about NRHP listed places in Maryland indexed here I asked Pubdog to comment here on this page and perhaps that would have helped The NHL URL that you reached seems pretty good to me It gives you phone numbers to call and it gives you NHL info nps gov as an email address to send any inquiries I confirm that you found a bad link from that page when I click on Questions Answers there i too see that it links to which just gives an error message However you do already have all the phone and email contact info you need to ask about any National Historic Landmark I will email NHL info nps gov to tell them that they have a bad link on that page and I hope they will remove it to reduce anyone else s frustration I hope this helps I hope you do follow my advice in previous section to get the full NRHP document since you do seem to genuinely care about developing this article on the SS John W Brown and since I believe that is a somewhat useful source for you to use Good luck ncram