Recently I poked around a database record set on Ancestry.com. The title is UK, American Loyalist Claims 1776-1835. In the description given by Ancestry we read that "Records in this database relate to Loyalist claims and cases heard by the American Loyalist Claims Commission."
There is more detail given in the description but every sentence stresses that this database provides names and details of Loyalists, those who fled the Colonies during and after the Revolutionary War 1775-1783. However this is incorrect! Badly incorrect.
The records are divided into Series I (AO12) and Series II (AO13).
Yes there are some Loyalist claims and documents in this set of records. But a very quick look in Series II (AO 13) reveals that in the section titled "American-Loyalist Claims Series II (140) Miscellaneous 1801-1835", we find Claims for Losses in Upper Canada after the War of 1812.
These claims for losses were not filed by Loyalists but by ordinary citizens who suffered at the hands of the Americans or the Indians during that War. This specific (and valuable!) list of those filing claims is dated May 1824 and begins on image 15 of 228. It ends on image 49 at claimant number 2054.
It's an invaluable database but sadly not many researchers will find it since it is not listed correctly on Ancestry.com. And for those who do stumble on it by searching and finding an ancestor's name, they are almost certain to think that finding that name in this database means that their ancestor was a Loyalist.
Please don't be fooled. When searching a large database, be sure to scroll back to the start of the specific section your ancestor's name is on. Look for the title of that specific set of records so that you know what you have found and can provide an accurate and correct source for the information.