Another great story,
http://www.aproundtable.org/tps2.cfm?ID=944&issuecode=history
Later, in the Battle of Springfield, Pastor Caldwell etched his name in the history books for his battlefield heroics. He discovered that Patriot troops were out of wadding for their muskets. He rushed to a nearby church, gathered up the hymnbooks, and brought them to the battle front.
As the Patriot soldiers tore through the hymnals to stuff the paper down their muskets, Caldwell noted that many of the hymns in the book were written by Isaac Watts. With that, Parson Caldwell rallied the Patriots with his now famous battle cry, “Now put Watts into them, boys!”