Thrale history
Ancestry.com. Boston Passenger and Crew Lists, 1820-1943 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2006.
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Title Ancestry.com. Boston Passenger and Crew Lists, 1820-1943 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2006. Short Title Boston passenger and crew lists Repository Ancestry Source ID S163
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Documents 
National Archives and Records Administration (NARA); Washington, D.C.; Crew Lists of Vessels Arriving at Boston, Massachusetts, 1917-1943; Microfilm Serial: T938; Microfilm Roll: 4.
http://search.ancestry.com/cgi-bin/sse.dll?rank=1&new=1&MSAV=0&msT=1&gss=angs-c&gsln=thrale&uidh=dh4&pcat=40&h=8775965&recoff=6&db=bostonpl&indiv=1