This old query from an 1883 magazine mentions the EMLEN family:
"GUEST - MORRIS - POWELL (vol. Vii. p. 351).â€” In the year 1600 there lived in Birmingham, England, a gentleman named T. Chanders who had a daughter Elizabeth, who married William Bailyes of the same place. They had two daughters, Alice and Elizabeth. Alice married George Guest. Elizabeth married William Hard.
George Guest and his wife came to America (Philadelphia) from Birmingham, England, in the year 1681, and first lived in a cave on the Delaware River, near Chestnut Street wharf, at which time they learned that her sister Elizabeth and her husband intended to come also and prepared to welcome them in the cave till they could build. Afterwards they built a house (Blue Anchor Inn) on Dock Creek, where they received William Penn when he first landed in Philadelphia, the house being unfinished at the time. George and Alice Guest had issue: George Guest, John Guest, and Phoebe Guest (born 7 mo. 28, 1685) who married Anthony Morris in 1705.
Elizabeth Guest, born in Birmingham, England, in 1675, came to America with her parents, married Arthur Holton 10 mo. 5, 1695, died 4 mo. 12, 1757, and had issue Mary Holton, who married Samuel Hudson, and had issue : Elizabeth Hudson, who married -- Jones ; Hannah Hudson, who married Joseph Howell, and had issue, Arthur Howell, a celebrated minister among Friends; and Mary Hudson, married 2 mo. 15, 1746, to John Head, merchant of Philadelphia.
Alice Guest survived her husband and died August, 1705; her sister, Elizabeth Hard. a widow without issue, was living in Philadelphia at the Ong of her decease.
Anthony and Phoebe Morris had fourteen children : 1. Anthony, born 1705, married Sarah Powell; 2. James, b. 1707, m. Elizabeth Kearney; 3. John, b. 1709, m. Mary Sutton ; 4. Samuel, d. 1710 ; 5. Samuel, b. 1711, m. Hannah Cadwalader; 6. Mary, b. 1713, m. Samuel Powell; 7. Joseph, b. 1714â€”5, m. Martha Fitzwater; 8. Elizabeth, b. 1716, m. Ben. Shoemaker; 9. Benjamin, b. 1717, died unmarried ; 10. Phoebe, b. 1721, d. unm. ; 11. Susanna, b. 1722, d. unm. ; 12. Deborah, b. 1723â€”4, d. March, 1793 ; 13. Benjamin, b. 1725 ; 14. Unnamed.
With respect to when Samuel Powell came to America, and where he came from, and the maiden name of his wife Abigail, I am not able to give any information. Samuel Powell and Abigail his wife had three children : Sarah, who married Anthony Morris; Samuel, m. Mary Morris; and a third, m. Joshua Emlen.
Anthony and Sarah Morris had six children : Samuel, Deborah, Anthony, Israel, Sarah, and Thomas.
Samuel and Mary Powell had three children : Abigail, Samuel, and Mary.
Joshua Emlen and wife had only one child, Samuel, who married â€” and had two children : Samuel, who m. Susan Delroy, and had no issue ; and Elizabeth, who m. Philip S. Physick, and had four children : Philip, Emlen, and two girls, one of whom married Dr. Jacob Randolph, and the other, Commodore David Conner, U. S. N. A. S. M."
Hope this helps.