The full title of this epic poem is The Fredoniad; or, Independence Preserved. An Epic Poem on The Late War of 1812.
This is a poem in 40 cantos covering the entire War of 1812. This page contains the table of contents of each of the 4 volumes, and links to the full text of this poem found on the Hathi Trust.
Source: Emmons, Richard. The Fredoniad; or, Independence Preserved. An Epic Poem on The Late War of 1812. 2nd ed. Philadelphia: W. Emmons, 1832
A discussion of this poem can be found in Severance, Frank H. Old Trails on the Niagara Frontier. Buffalo: The Matthews-Northrup Co., 1899 (Chapter entitled Niagara and the Poets)
Available digitally by clicking here