Majors, Colonels, and Generals are often called what in the civil war

I think officers, the term officers described really high ranks in the past.

MAJOR GENERAL

A major general had the command and administrative responsibilities for an infantry division. He had to ensure that his division was well cared for and ready to fight when needed. In battle, he commanded his division by issuing orders to his brigade commanders on where to position their troops.

COLONEL

A colonel had the command and administrative duties for an infantry, cavalry, or artillery regiment, made up of varying numbers of companies. The colonel was expected to lead his regiment into battle personally to ensure that it performed to its utmost ability. For this reason, colonels were often killed or wounded in action.

It depends which generals and colonels you’re talking about but if you were talking about the regular the ones they are usually called “Military Officers” or just “Officers”.