you can find one probate record for him: familysearch - missouri - bottom part of listings: Missouri Probate, 1780 - 1998, County: Pike; Executor Accounts, settlements, 1825 - 1855, vol. B-C, Page 187 / 689.
Then also under Pike: go to Probates 1825 - 1847, Vol 1-3:
index showing Wilbarger entries is on page 221 / 644. The actual will, executor bond are on pages 268 / 644 & 269 / 644.
Site to find this is familysearch.com --- a free-of-charge site (also owned by the LDS) ....easier to use than ancestry, I find. The unindexed listings at the bottom of the pages are not on ancestry..