I have checked the burial records for Polk Co. did not see burial info for Henry Kingsbury - They did marry in Polk Co. with the date you listed of July 31, 1895 - if he died in Polk - I so far have not found him listed as buried in Polk. Not saying he isn't, just have not fond note of it.
Peggy- of the FLGenWeb Project,Inc. Polk Co.