Widows of the War of 1812 were allowed to apply for bounty land in the 1850s, but not a pension until much later. If your veteran survived until the 1870s, he might have applied for a pension. Two bounty land acts in the 1850s gave most veterans a total of 160 acres and their widows during that era, if they were married long enough.
I've been working on a bounty land application for a Kentucky widow in the 1850s whose husband served. The actual property was patented in Iowa and Illinois by men who purchased the warrant from the widow after it had been issued.
Casefile Clues subscribers will see the bounty application in issue 51.