He served with Nathaniel Lyon 's forces in Missouri , participating in the battles of Boonville and Wilson 's Creek .
In April 1861 , Herron was appointed captain of the 1st Iowa Volunteer Regiment .
Herron served with Nathaniel Lyon 's forces in Missouri , participating in the battles of Boonville and Wilson 's Creek .
In April 1861 , Herron was appointed captain of the 1st Iowa Volunteer Regiment .