Perhaps you should try some spelling variations:
york volunteer » form volunteer, worker volunteer, mock volunteers
volunteer 9th » volunteer faith, volunteer late, volunteer fish
fish regiment » fifth regiment, irish regiment, irish regiments
9th regiment » 89th regiment, 29th regiment, 11th regiment
ist regiment » first regiment, 71st regiment, his regiment

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( 7th new york volunteer 9th regiment ) OR ( 7th new york volunteer ((fish regiment) OR (ist regiment)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 7th new york volunteer 9th regiment ) or ( 7th new york volunteer ((fish regiment) OR (ist regiment)) ))".
• Adding a wildcard symbol may retrieve word variants: (( 7th new york volunteer 9th regiment ) or ( 7th new york volunteer ((fish regiment) OR (ist regiment)) ))*.