I appreciate any input

Paul

Enlish porcelain was considered superior to domestic items for a very long time until American potteries eventually became dominant for such items. There was a brisk trade in European goods long after the first immigrants came to the Americas. I have letters from some of my earlier ancestors, requesting family who were going to sail to America to please bring them one item or another, because the goods bought here just weren't as good.

If this is as you presented, and it surely looks like it's quite old, your ancestors may have purchased an English import long after they arrived in America. I do not think this was brought over in the 17th century.

"'China glaze' wares, as perhaps we should call them - or the early pearlwares if this is still preferred - were predominantly decorated in underglaze blue with Oriental designs. One of these, the 'Chinese House' pattern, is by far and away the most popular and commonly found and must have remained in fashion for almost 25years - until the turn of the century at least . One may recognise it instantly despite its many variations by the layout of the pattern. This follows a regular sequence of 'tree-fence-house-fence-tree'. (Terrance Lockett on an article pertaining to Pearlwares)

I'm looking a the tree/fence/house/fence/tree on the tea bowl. By turn of the century, He is referring to late 1700s to early 1800s.

I think the confusion about the Mayflower is in the tracing your family back to a certain individual, not to the person who put this cup and saucer into the family heirlooms, who was a descendent of the Mayflower's traveller. Also, although the original Mayflower's wherabouts became unknown after its return to England, there were other ships named Mayflower which may have made the crossing later.