There are some good websites for searching for people.  Try:
http://www.emiarch.dk/search.php3?l=en
(remember that Husum was in Denmark for awhile).
http://www.rootsweb.com/pub/usgenweb/ia/clinton/cemeteries/lostna.txt
http://www.castlegarden.org   for emigrants prior to Ellis Island’s opening.
http://www.aggsh.de/ger/pag/ags/st-sy.htm
http://rootdigger.de/Emi.htm
You’ll love the 360 degree photo of a Husum park at
http://geoimages.berkeley.edu/wwp304html/HolgerSchulz.html
http://meinestadt.de   for photos.
Google “Husum” and you’ll get good stuff.      Census at:
http://www.aggsh.de/engl/pag/vz-pub.htm

 I do not recommend the researcher Hans Peter-Voss of Schleswig-Holstein.