No Knapps mentioned in the Beers book, also none of the people you mentioned are in the index of Wood Co. deaths before 1908. There is a Hettie M. Householder buried at Ft. Meigs Cem.- born 1892, died Jul 1965. The Wood Co. District Public Library online obit index has an obit listed for Chloa Knapp McConnell in the Daily Sentinel-Tribune 24 Apr 1950. There is a listing for Elmer G. Householder in the 1910 census in Plain Twp. pg. 239A. In the 1880 census there is a Charles L. Knapp in Milton Twp. pg. 88A, and a Charles S. Knapp in Perry Twp. pg. 16C.