I didn't find anything on the 1850 Cenus for the above surnames and varient spellings. I found the following in the marriage listings from the book Louisa County Iowa Marriages: Bk "C" p 39 11 Feb 1864 George Shaw**\ Catharine Mary Sheafer (35) Bk "C" p 62 18 May 1865 William B. Hook* **Note: George is listed on census--#50\50, Jefferson Twp. Shaw, Freeman age 28, farmer, b OH; Abagail age 33, b OH; William age 13, b IN; George age 7, b IA; Sarah I. age 4, b IA. Michael Neville, age 18, farmer, b VA.