http://www.rootsweb.com/%7Eiahenry/census/186b.htm I found these names on the 1850 Henry County Iowa census
1 378 378 Willeford Samuel 35 M Farmer 1,000 Kentucky
2 378 378 Willeford Rhoda 35 F Kentucky
3 378 378 Willeford Minerva 14 F Kentucky X
4 378 378 Willeford Susan 12 F Iowa X
5 378 378 Willeford Cela 11 F Iowa X
6 378 378 Willeford James H 9 M Iowa X
7 378 378 Willeford Samuel 7 M Iowa X
8 378 378 Willeford Adeline 5 F Iowa
9 378 378 Willeford Robert Wilson 4 M Iowa
10 378 378 Willeford Elvyra 3 F Iowa
11 378 378 Willeford Stephen J 2 M Iowa
12 379 379 Willeford Wiley 25 M Farmer 500 Kentucky
13 379 379 Willeford Sarah J 18 F Indiana
14 379 379 Willeford William H 1 M Iowa