I checked the Heritage Quest online census (the library I use subscribes to
this) for the MO 1910 census.
Listed is a Lorenzo J. Casner (age not readable, married for 17 years, born
in PA) and his wife, Mary E. Casner (age not readable, married 17 years,
born in OH). No children are listed in the home.
They are listed in Texas County, Piney Township, Enumeration District 109,
page 86, enumerated on on 5-14 and 5-16 of May, 1910.
Hope this is your person and that this helps.
Lorenzo & Mary Elizabeth Casner lived in Bristow, Iowa, until
1906 when
they traded their place for land in Missouri. If someone has access to a
1910 U. S. Census index for Missouri, I would like to know the county and
township where they were located. Appreciate any assistance.