Edmondson, Sarah / Sallie

Looking for information relating to Sarah / Sallie Edmondson, b.abt 1807 in Maryland or perhaps southern PA.Married Green Williams in 1833 and had 4 children:Caleb b. 1836, Sarah b. 1838, Jesse b. 1840 and Mary b.1842. Green Williams was killed in an accident sometime after 1842. Sarah Edmondson Williams then had 2 more children:Jane M. Howard b 1850 and Richard T. Howard b. 1845. Any assistance would be greatly appreciated.