From 1939 to 1941 it was celebrated on the second to last Thursday in November
[DOC] [TLE] Why Thanksgiving is the fourth Thursday of November | cleveland.com [PAR] Nov 27, 2014 ... 1939 - 1941: President Franklin Roosevelt moved Thanksgiving to the second to 
last Thursday in November, in an effort to extend the shopping... [DOC] [TLE] Monday Morsels: Happy Franksgiving | Shhhhhh!