The date of Thanksgiving is shown as November 29th. That was the case in November of 1934, the month of the cartoon's release. Since being fixed on the fourth Thursday in November by law in 1941, the holiday in the United States can now fall between November 22th to 28th, but no later.
The date of Easter is shown as 7 April. As of November 1934, when the cartoon was released, the most recent year when Easter fell on that date was 1912, and the next such year would be 1985.
Father Time (and the baby new year infants) lead the parade of holidays.
Thanksgiving, a popular celebration at the time this short was released, has since been overshadowed by Halloween, then an emerging holiday. And Christmas seasonal items are seen earlier each year.