My first impression is that the cradle is not very old. The color is too pale, the thinness of the stock it's made from seems modern (how thick is it? 3/4 inch?), and most early craftsmen would have avoided the large knot on the side panel.

The plans for cradles like these have been available for a long time, so it's possible it was made by a home woodworker.

I am curious about the nail heads. They look square, and that could be an indication of old nails.

You can buy square-headed nails today ... that looks like one of the many "make a cradle" plans I've seen.

hi nutmeger,
take a look at this hooded cradle kit from Bartley's. Hard to believe the kit sells for $599, notice the construction details.
Your cradle has well-made dovetails which is difficult to do with angled sides. It looks like your cradle was painted and stripped, maybe bottom replaced. I think that you have an old cradle. BTW in my area I don't see any association with Amish and antique furniture.

Here is a link that might be useful: Bartley's cradle kit