Resources used for Great White Fleet postcards

http://www.history.navy.mil/faqs/faq42-3.htm
http://www.greatwhitefleet.info/Milton_Willard.html
http://chroniclingamerica.loc.gov/lccn/sn85066387/1907-07-28/ed-1/seq-5/;words=fleet+white+great?date1=1907&rows=20&searchType=basic&state=California&date2=1909&proxtext=Great+White+Fleet&y=21&x=22&dateFilterType=yearRange&index=0