3 entries match your criteria. Related Historical MarkersConcord New Hampshire Garrison Sites By Cosmos Mariner, June 26, 2017 The First Garrison in Concord Marker (wide view) SHOWN IN SOURCE-SPECIFIED ORDER1► New Hampshire (Merrimack County), Concord — The First Garrison in Concord — On North Main Street 0.2 miles north of U.S. 202, on the right when traveling north. 2► New Hampshire (Merrimack County), Concord — Site of Rumford Garrison No. 5 — On North Main Street (U.S. 3) at Loudon Road, on the right when traveling north on North Main Street. 3► New Hampshire (Merrimack County), Concord — Site of Rumford Garrison No. 6 — On Hall Street at Water Street (U.S. 3) on Hall Street.