Google Images (Pictures)
http://www.matthewhenson.com/discovered.htm
http://www.matthewhenson.com/chronology.htm
http://news.nationalgeographic.com/news/2003/01/0110_030113_henson.html
Meaning of USNS
http://usmilitary.about.com/od/glossarytermsu/g/u6644.htm
http://www.enchantedlearning.com/explorers/page/h/henson.shtml
Wiki Anwsers
http://www.matthewhenson.org/North_Pole_Trip2.htm
http://www.matthewhenson.com/1932_NY_times.htm
Wikipedia