The following information has been brought to my attention concerning the pension and bounty land records for the War of 1812. Many men or their widows applied for pension or bounty land under the Old War Pension Act which was prior to 1812. For more explanation on the individual acts please look at the following link https://eservices.archives.gov/orderonline. The descriptive pamphlet listed here is listed under M313 The index to the War of 1812 Pension Application files. Men who participated in the war between 1812 and 1815, and applied for pension, are included in the Index to the Pension and Bounty Land Application Files.
Another area to look for information is also in the Application files. These will be indexed if the solider, sailor or widow was eligible or not. If a claim was made a filed was started even if it would later be rejected.
I hope this helps understand these important genealogical records. Thanks again for the correction.