In the summer of 1683, Lenart left Rotterdam, immigrating to the Pennsylvania Province along with other Crefelders aboard the ship Concord. , ,  On July 24, 1863, they embarked from Gravesend, England for America aboard the ship Concord (there were two Concord ships). The ship arrived in Philadelphia on 06 October, 1683. The voyage took 73 days.
Lenart was one of the original 13 families which settled Germantown, comprising 33 who came to America on the Concord. 
The occupation of Lenart Arets, with others from Crefeld--Abraham, Dirck and Hermann Op den Graeff, Abraham Tunes, and Jan Lensen-- was a linen weaver. 
Lenart was a German Quaker. On 20 March 1681 in Crefeld, Lenart signed (as Lenart Arents) a Quaker marriage document and all of the signatories belonged to the Quaker congregation. 
The Pennsylvania Magazine of History and Biography (The Historical Society of Pennsylvania, 1877-)
Niepoth, Wilhelm. The Ancestry of the Thirteen Krefeld Emigrants of 1683
Conrad. Thones Kunders and his children
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