Here are the only Fergus' listed on the 1870 NJ Census Index. There weren't any listed for Delaware. - Jill Fergus McGirr Lname F Name Age Sex Race BirthPl County Locality Roll-Page FERGUS ANTOINA 45 M B WIND HUDSON 13-WD JERSEY CITY 868,463 FERGUS HANNAH 20 F W IREL ESSEX 8-WD NEWARK 881,170 FERGUS JAMES 21 M W SCOT ESSEX 8-WD NEWARK 881,155