"On the 4 rolls of this microfilm publication is reproduced an alphabetical card index to the compiled service records of volunteer Union soldiers belonging to units from the State of Louisiana. ... are part of a body of records in the National Archives designated as Record Group 94, Records of The Adjutant General's Office." -- p. 2-3.

This microfilm publication reproduces "an alphabetical card index to the compiled service records of volunteer soldiers of the War with Spain belonging to units from the state of Louisiana. The index contains most of the names of Louisiana soldiers to which references were found in the records used in compiling the service records. The cards give the name of the soldier, his rank, and the unit in which he served. There are cross-reference cards for soldiers' names that appeared in the records under more than one spelling."