I'm not seeing anything more on Liberty, but I may have found some information on a possible sister who married Clapsaddle.
1860 in Paw Paw, DeKalb Co, IL;
Frederick Clapsaddle, 33, b. NY
Marinda Clapsaddle, 24, b. Canada
Don Clapsaddle, 5, b. Ill
Byrondle Clapsaddle, 6 months, b. Ill
Mary Hare, 66, b. Mass
1870 in PawPaw, DeKalb Co, IL:
Fred Clapsaddle, 43, b. NY
Marinda, 34, born Canada
Dann, 15, b. Ill
Myron H, 10, B. Ill
Omer, 8, b. Ill
Harry B, 1, b. Ill
Mercy Hare, 75, b. Mass (note name was Mary in last census)
In 1880 they are in same location, but Mercy is no longer in household. (Fredrick Clapsaddle in index)
In familysearch records there is a death record for a Harry Byrd Clapsaddle b. c.1869, died 12/17/1941 Rockford, Winnebago, IL, which states parents of Fredrick Clapsaddle and Mirinda Hare. That site also shows a marriage license for Omer, son of Fred and Marinda Hare Clapsaddle.
This appears to be the findagrave memorial for Frederick & Marenda. (note spelling variation)http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=ha...
Interesting that in the same cemetery is a MARCY Hare, 1794-1877, which seems to fit the Mercy or Mary above.http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=ha...
Sorry I could not turn up anything on Liberty, but maybe something with this potential sister may enable you to find something while you are reviewing records to prove if it is a sister or not. Since Marenda was born in Canada, that adds another dimension to the search.