Lyndon Johnson actually said...

I have hereunto set my hand and caused the Seal of the United States of America to be affixed.

Today we have much more than an abundant harvest.

I urge that these observances specially emphasize the need for immediate private and public participation.

For all the blessings that have been bestowed upon our nation during the past 12 months, it is a small thing to give thanks to Almighty God.