The uniform would be worn by a young man who belonged to one of the volunteer units.

The two volunteer units were created for the two world wars.

He is director of its volunteer unit, not of the organization over all.

No volunteer units in these districts between 1866 and 1878.

No volunteer units in these districts between 1909 and 1913.

About three dozen volunteer units were formed between 1855 and 1861.

Formation of volunteer units and their preparation for armed action.

Was the person in the Regular Army or a volunteer unit?

During the early 19th century, a number of volunteer units were organized in Boston.

It is made up of 4 regular units and one volunteer unit.