Samuel and his twin brother Joshua established the botanical garden or arboretum on their property which eventually became known as Longwood Gardens, described as "America's premier public display garden," and a popular tourist attraction located 30 miles outside Philadelphia at Kennett Square, PA.1321
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In 1700, [Correction: 1701] a Quaker family named Peirce purchased the property [Longwood Gardens] from William Penn and soon established a working farm. Joshua and Samuel Peirce began planting an arboretum on the farm in 1798. The farm was purchased in 1906 by Pierre du Pont so he could preserve the trees, and from 1907 until the 1930s Mr. du Pont created most of what is enjoyed today.2489

[See Samuel and Joshua’s great-grandfather George Peirce Sr. (1655-1733) notes about the origins of this property that came to be known as Longwood Gardens.]
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I am trying to find the parents of Elizabeth Passmore Pierce, b. 1 Dec 1807, PA and d. 8 Aug 1893, Cape May, NJ, buried in Philadelphia.... Elizabeth is my 3rd great grandmother.

The Samuel who is a twin to Joshua could very well be the father of my Elizabeth Passmore Pierce. Unfortunately, you don't have any more information about him than I do....who he married or if he had any children. Oh well, I will keep on looking and let you know if I ever find anything.2490