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Greetings, I am looking for any information that I can find on a Robert Sherrard born in Ireland (likely Northern) in (or about) 1806.  He came to America and I can track him here.  He was my great-great-great grandfather.  He lived until 1894, and my great-grandfather, Roland Sherrard, whom I knew, knew him and spoke of him.  Robert would most definitely had been a protestant, and possibly a Quaker, since when he arrived here in Chester County PA his children married into old Quaker families here since the 1680s, including the Hutton and Simcox (Simcocks) families who may also have come by way of Ireland, but a hundred years or more earlier, and the Darlington and Brinton families, who were English and came as Quakers to Chester County in the 1680s. I am related to all these families, and can trace them all back fairly well, but not the Sherrards.  I cannot get beyond Robert.  American Census records have him, in 1870, living in Chester County PA with his much younger wife Ruth Ann McCool (she was 45, and he was 64 then) with their 5 children,  Joseph (19), William (17), Margaret (15), Ruth (13), and Samuel (10). Their son Joseph married Delia Brinton Darlington, and their son Joseph Roland Darlington Sherrard married Helen Simcox, daughter of Walker Speakman Simcox.  The SImcocks family came to Quaker Cherster county in the 1680s, and the name Walker and Cheyney (Cheyny) appear often in that line as first names.
Any assistance you can give me in tracking down these relatives would be most helpful.  Ruth Ann McCool was also born in Ireland, according to American Census records.  I do not know if they married in Ireland, or when either of them came to the US, or if Ruth was a second wife, which could be possible considering the age difference between she and Robert Sherrard.