United States President John F. Kennedy Thanksgiving Day proclamation, 1961. (An excerpt from The American Presidency Project)
Now, Therefore, I, John F. Kennedy, President of the United States of America, in consonance with the joint resolution of Congress approved December 26, 1941, which designates the fourth Thursday in November of each year as Thanksgiving Day, do hereby proclaim Thursday, the twenty-third day of November of this year, as a day of national thanksgiving.
I urge all citizens to make this Thanksgiving not merely a holiday from their labors, but rather a day of contemplation. I ask the head of each family to recount to his children the story of the first New England Thanksgiving, thus to impress upon future generations the heritage of this nation born in toil, in danger, in purpose, and in the conviction that right and justice and freedom can through man’s efforts persevere and come to fruition with the blessing of God.