Complex sentence: Perry was also aboard the "President" when it engaged the HMS "Belvidera" when Rodgers himself fired the first shot of the war at this vessel with a following shot that resulted in a cannon bursting, wounding Rodgers and Perry and killing and wounding others.
Split into simpler sentences: Perry was also aboard the "President" when it engaged the HMS "Belvidera". The following shots resulted in a cannon bursting, wounding Rodgers and Perry and killing and wounding others.