Re: Biddles Company of the Corps of Artillery
In Which War Could Your American Ancestor Have Fought?
From Val Greenwood's Research Guide to American Genealogy, 1978.
If born about 1762-1794 War of 1812
1762-1812 Blackhawk War
1796-1828 Mexican War
1808-1849 Civil War
1848-1880 Spanish-American War
He also states:State Archives contain records that are not in the National Archives, especially the early Indian Wars and the War of 1812.
Hope this helps.