Complex sentence: The reorganized unit became the 1st Florida Volunteer Infantry; eight companies mustered out 3 December 1898 at Tampa and four companies mustered out 27 January 1899 at Huntsville, Alabama.
Split into simpler sentences: The reorganized unit became the 1st Florida Volunteer Infantry Regiment. Eight companies of the regiment mustered out 3 December 1898 at Tampa and four companies mustered out 27 January 1899 at Huntsville, Alabama.