I have not been very successful in my research on Lewis Vaile. In some census records the name is spelled Vales. As for Watt--I haven't been very lucky there, either. I have a Wm. H. Watt b. Auglaize Co OH who md. Jennie _____ (maybe Baker) who was b. in NY. By 1880 they are in Greenwood Co KS. Wm. died in 1882. I can't find him or Jennie anywhere in 1870. Wm. Vaile/Vales md. Margaret Ann Osborne in IN in 1856--both were born in IN. Wm. may have died in Moultrie Co IL (he was there in 1880) and he either knew he was terminally ill or after he died, someone took his youngest daughter to Greenwood Co KS where she grew up and married. Sorry I can't be of more help.