26 November 1863 United States President Abraham Lincoln proclaimed November 26 as a national Thanksgiving Day, to be celebrated annually on the final Thursday of November.
Thanksgiving (United States), article from Wikipedia    https://en.wikipedia.org/wiki/Thanksgiving_(United_States)

THANKSGIVING SONG  - Mary Chapin Carpenter       https://www.youtube.com/watch?v=7NSQLMPUK-8
THANKSGIVING SONG by Ben Rector   - Ben Rector       https://www.youtube.com/watch?v=QwaxNPY5nIY
THANKSGIVING SONG by Gas Street Music   - Gas Street Music, Taku Mudere, Zo Chilengwe       https://www.youtube.com/watch?v=488HEflx2ao
THANKSGIVING SONG by The Petersens   - The Petersens   https://www.youtube.com/watch?v=LKHXi2UHeuU    
THANKSGIVING SONG by JJ Heller   - JJ Heller       https://www.youtube.com/watch?v=uGoDwepwP-k

HAPPY THANKSGIVING  - Debbie Friedman       https://www.youtube.com/watch?v=CxScYl2UK9o&t=9s
Vintage Thanksgiving Music on YouTube     https://www.youtube.com/watch?v=Y6l9ea_1QD8
Mudcat thread, Help: Need Thanksgiving songs    /mudcat.org/thread.cfm?threadid=41069#590911


Link to Mudcat post above THANKSGIVING SONGS