Did your ancestor die with minor children? If so, there might be guardianship records for his children, particularly if he left real estate behind or a significant amount of personal property. For much of American history, women had no property rights and a widow by herself might not be able to receive money for her children or to manage real estate they inherited from a deceased father or grandparent. Records of the guardianship might provide more information on the children and perhaps clues as to the mother’s remarriage. Researchers should always research the guardians fully to determine if they had any biological relationship to the children.