From the Hadley Society website:
Simon HADLEY, son of Simon and Catherine (TALBOT) HADLEY, was born in1675, probably in Ireland, died 1756 and is buried in the New Gardenburial grounds, Chester County, Pennsylvania. He married (1) Ruth (KERAN)MILLER, a widow, who was born 1677 in Ireland, died 1750, and is alsoburied in New Garden. Simon married (2) in 1752, Phoebe (GRUBB)BUFFINGTON, widow of Richard BUFFINGTON, and daughter of John and FrancesGRUBB.
Simon HADLEY came to America in 1712* with his first wife, Ruth, and 6children, having 2 more children after his arrival in America. Simonpurchased 1000 acres of land about 30 miles southwest of Philadelphia inthe Manor Steyning. When the Pennsylvania-Delaware line was drawn itpassed through Simon's property, placing his residence in New Castle Co.,Delaware, and the bulk of his property in Chester County Pennsylvania.
Simon and his family were members of the Society of Friends. Theyreceived certificates of removal from Moate Monthly Meeting in West MeathCounty, Ireland. Four years after his arrival in America, Simon presentedthe certificates to Newark MM in Centerville, DE. About that time NewGarden Meeting was set off from New Garden, and records of Simon's familycan be found in New Garden meeting minutes and records.
*Authority for the statement that Simon arrived in 1712 comes from twosources, HISTORY OF CHESTER COUNTY PENNSYLVANIA, by Futher and Cope, andGENEALOGY OF THE NEW ENGLAND HADLEYS, by D. L. Tappan. Neither sourceoffers source documentation.