Not sure whether this is covered by this FOD Forum, but is this the family you are trying to sort out?

1881 Census USA -
7th Ward, Covington, Kenton, Kentucky

GRUNDY

James - 43, born England
Bridget - 43 - born Ireland
Richard - 19 birthplace PA
Thomas - 17 - OH
James - 15 - OH
William - 12 - OH
Charles - 9 - KY
Mary - 2 month - KY