Civil War
- Abercrombie, Leonard Anderson
- Acadia
- Adams Hill, Battle of
- Adams, William Wirt
- Addicks, TX
- Adobe Walls, First Battle of
- Alexander, Almerine M.
- Alexander, W. J. D.
- Allen Ranch
- Allen, Augustus Calhoun
- Allen, Charlotte Marie Baldwin
- Allen, Robert Dickinson
- Allen, Robert Thomas Pritchard
- Anderson, J. B.
- Anderson, Kitty
- Anderson, William [Bloody Bill] T.
- Andrews, John Day
- Andrews, Julius A.
- Archer, James Jay
- Arizona Scouts
- Arkansas Post
- Arrington, George Washington
- Arthur
- Austin, William Tennant
- Bagby, Arthur Pendleton
- Bailey, Mollie Arline Kirkland
- Baird, Spruce McCoy
- Bane, John Pierson
- Banks, Nathaniel Prentiss
- Barker, James J. A.
- Barnes, James William
- Barry, James Buckner
- Barziza, Decimus et Ultimus
- Bass, Frederick Samuel
- Bass, Thomas Coke
- Bates, James Campbell
- Bates, Joseph
- Battle, Nicholas William
- Baxter, Eli Harris, Jr.
- Baylor, George Wythe
- Baylor, John Robert
- Bayou City
- Beatty, Charles Roambrose
- Beaumont, Edward
- Beaumont, Eugene Beauharnais
- Becton, Edwin Pinckney
- Bee, Barnard Elliott, Jr.
- Bee, Hamilton Prioleau
- Beeson, William Edward
- Bell, Robert Eagleton