I searched through Ancestry and FamilySearch and didn't find any other marriages for Asa other than what you said. Didn't find one for Temperance. Of course, that's not the definitive answer. You'd need to contact the Recorder's Office in every county he lived in to be sure.
Do you have a copy of his obituary? He died 6 Feb 1911 in Texas County according to the Pilkinton and all variations plus other lines family tree, ancestry.com.
You can contact the Texas County Missouri Genealogical Society, 300 S. Grand Ave., Houston, MO 65483-1444, 417-967-3126 (they're not online).
OR the State Historical Society of Missouri, http://shs.umsystem.edu/newspaper/
has the largest collection of newspapers on microfilm in the State and they'll make copies of obits. Successful Searching!