Your family history goes backsome fifteen generations to ca. 1500=1520 to Hilare le Juis, of France.
Your immigrant ancestor was Daniel Jouy who migrated from Dannstadt near Ludwigshaven in present day Germany.He and his family travelled up the Rhine to Rotterdam and sailed to Philadelphia in 1732.
The history of the family was published in two books -one published shortly after the end of the Civil War and the other in 1919 by Reverend Dennis Boeshore Shuey D.D., a great-granduncle of my wife.
Both books are in the Library of Congress and both are available for purchase in reprint format by Higginson Books of Salem, Massachusetts.They have a web site which lists them.Their reprints are of excellent quality and the prices are reasonable.
Additionally the Lebanon County Historical Society of Lebanon, Lebanon, Pennsylvania has material of the family -including a book that they had printed which I'd given to them in loose leaf form with material taken from my database.
Other family history centers and genealogical societies also have copies of Dr Shuey's books - "The History of the Shuey Family in America"
Be pleased to updateyour own family history and add it to the database.
I can send you what I have on you history in Acrobat PDF format or send it to you by snail mail.