Photographs
- MEWI 1 Letter : Bayard, James 1829/04/15
- MEWI 1 Letter : Bayard, James 1829/10/15
- MEWI 4 Letter : Beale, F.- p.58 Dept. of Interior #1 1849/07/13
- MEWI 4 Letter : Bean, J.H.- p.112 Dept. of Interior #1 1849/08/25
- MEWI 1 Letter : Bechtol and Co., John 1827/06/02
- MEWI 4 Letter : Beebe, S.S.- p.28 Dept. of Interior #1 1849/06/14
- MEWI 4 Letter : Beebe, S.S.- p.84 Dept. of Interior #1 1849/07/28
- MEWI 4 Letter : Beecher, (P.) T.- p.157 Dept. of Interior #1 1849/11/03
- MEWI 4 Letter : Beecher, (P.) T.- p.6 Dept. of Interior #1 1849/05/28
- MEWI 1 Letter : Beecher, Jesse 1819/07/05
- MEWI 2 Letter : Beecher, Louisa 1932/0225
- MEWI 1 Letter : Beecher, P. (to Ralph Osborne) 1827/11/23
- MEWI 2 Letter : Beecher, Susan G. 1832/02/01
- MEWI 4 Letter : Bell, Edward- p.104 Dept. of Interior #1 1849/08/17
- MEWI 4 Letter : Bell, John- p.182 Dept. of Interior #1 1850/01/10
- MEWI 4 Letter : Bell, John- p.229 Dept. of Interior #1 1850/03/18
- MEWI 4 Letter : Bell, John- p.63 Dept. of Interior #1 1849/05/19
- MEWI 4 Letter : Belser, J.E.- p.231 Dept. of Interior #1 1850/03/20
- MEWI 4 Letter : Benham, Calhoun- p.299 Dept. of Interior #1 1850/06/13
- MEWI 4 Letter : Benham, W.S.- p.58 Dept. of Interior #1 1849/07/16
- MEWI 4 Letter : Bennett, H.- p.267 Dept. of Interior #1 1850/04/25
- MEWI 4 Letter : Bennett, H.- p.292 Dept. of Interior #1 1850/06/05
- MEWI 4 Letter : Benton, Thomas Hart- p.307 Dept. of Interior #1 1850/07/01
- MEWI 4 Letter : Bernard, J.N.- p.122 Dept. of Interior #1 1849/09/01
- MEWI 4 Letter : Bertrand, C.P.- p.191 Dept. of Interior #1 1849/01/31
- MEWI 4 Letter : Bertrand, C.P.- p.237 Dept. of Interior #1 1850/03/25
- MEWI 4 Letter : Bertrand, C.P.- p.57 Dept. of Interior #1 1849/07/13
- MEWI 4 Letter : Bertrand, C.P.- p.76 Dept. of Interior #1 1849/05/16
- MEWI 2 Letter : Bibby and Company, Edward 1868/12/26
- MEWI 4 Letter : Bigger, J. Bell- p.281 Dept. of Interior #1 1850/05/20
- MEWI 4 Letter : Bimeler, J.M.- p.205 Dept. of Interior #1 1850/02/15
- MEWI 4 Letter : Bingham, J.- p.13 Dept. of Interior #1 1849/05/30
- MEWI 2 Letter : Bininger, P.W. 1871/06/22
- MEWI 4 Letter : Birch, Nestor F.- p.215 Dept. of Interior #1 1850/02/28
- MEWI 4 Letter : Birch, Nestor F.- p.262 Dept. of Interior #1 1850/04/20
- MEWI 4 Letter : Bishop, W.W.- p.305 Dept. of Interior #1 1850/06/22
- MEWI 4 Letter : Bissell, William H.- p.196 Dept. of Interior #1 1850/02/05
- MEWI 4 Letter : Blair, Francis- p.58 Dept. of Interior #1 1849/07/13
- MEWI 4 Letter : Blake, Harrison G.- p.177 Dept. of Interior #1 1849/12/31
- MEWI 4 Letter : Blake, John S.- p.177 Dept. of Interior #1 1850/01/02
- MEWI 4 Letter : Blanchard, John- p.34 Dept. of Interior #1 1849/06/21
- MEWI 4 Letter : Blanchor, Washington Z.- p.299 Dept. of Interior #1 1850/06/12
- MEWI 4 Letter : Blickensderfer, Jacob- p.127 Dept. of Interior #1 1849/09/06
- MEWI 4 Letter : Blickensderfer, Jacob- p.290 Dept. of Interior #1 1850/06/03
- MEWI 4 Letter : Blickensderfer, Jacob- p.304 Dept. of Interior #1 1850/06/19
- MEWI 1 Letter : Bliss, Al L. 1829/03/30
- MEWI 4 Letter : Bliss, W.S.- p.160 Dept. of Interior #1 1849/11/09
- MEWI 4 Letter : Bohannan, Niles R.- p.301 Dept. of Interior #1 1850/06/17
- MEWI 1 Letter : Bond(?), Samuel 1827/10/22
- MEWI 4 Letter : Bond, Benjamin- p.215 Dept. of Interior #1 1850/02/28
- MEWI 1 Letter : Bond, William Key 1829/01/07
- MEWI 1 Letter : Bond, William Key 1829/01/17
- MEWI 1 Letter : Bond, William Key 1829/10/10
- MEWI 4 Letter : Borland, Charles- p.5 Dept. of Interior #1 1849/05/28
- MEWI 2 Letter : Borsarelli, Pierre A. see 1849/10/26 N. Niles to T.E. 1849/09/16
- MEWI 4 Letter : Bowie, Molly, Mrs.- p.143 Dept. of Interior #1 1849/10/09
- MEWI 4 Letter : Bowie, Molly, Mrs.- p.72 Dept. of Interior #1 1849/03/19
- MEWI 4 Letter : Bowie, R.J.- p.282 Dept. of Interior #1 1850/05/23
- MEWI 4 Letter : Bowldin, James- p.152 Dept. of Interior #1 1849/10/27
- MEWI 4 Letter : Boyd, J.- p.88 Dept. of Interior #1 1849/08/02
- MEWI 4 Letter : Bracken, Charles- p.268 Dept. of Interior #1 1850/04/26
- MEWI 4 Letter : Brackenridge, H.M.- p.246 Dept. of Interior #1 1850/04/03
- MEWI 4 Letter : Bradford, A.B.- p.210 Dept. of Interior #1 1850/02/21
- MEWI 4 Letter : Bradley, Levi- p.? Dept. of Interior #1 1849/06/02
- MEWI 4 Letter : Brady, J.E.- p.113 Dept. of Interior #1 1849/08/27
- MEWI 4 Letter : Brady, J.E.- p.255 Dept. of Interior #1 1850/04/12
- MEWI 2 Letter : Brady, John 1848/07/19
- MEWI 2 Letter : Brady, John 1852/11/02
- MEWI 1 Letter : Brady, John S. 1827/07/22
- MEWI 1 Letter : Brady, John S. 1829/02/24
- MEWI 4 Letter : Brandigee, Jacob B.- p.253 Dept. of Interior #1 1850/04/10
- MEWI 4 Letter : Bratley, J.W.P.- p.300 Dept. of Interior #1 1850/06/17
- MEWI 4 Letter : Breck, Daniel- p.196 Dept. of Interior #1 1850/02/05
- MEWI 4 Letter : Breek, David- p.191 Dept. of Interior #1 1850/02/01
- MEWI 4 Letter : Brewer, A.G.- p.116 Dept. of Interior #1 1849/08/28
- MEWI 1 Letter : Brice, J.J. 1827/11/18
- MEWI 4 Letter : Briggs, James A.- p.170 Dept. of Interior #1 1849/11/30
- MEWI 4 Letter : Briggs, James A.- p.239 Dept. of Interior #1 1850/03/26
- MEWI 4 Letter : Briggs, James A.- p.240 Dept. of Interior #1 1850/03/26
- MEWI 4 Letter : Briggs, James A.- p.83 Dept. of Interior #1 1849/07/05
- MEWI 4 Letter : Briley, Edward B.- p.188 Dept. of Interior #1 1850/01/28
- MEWI 4 Letter : Brinckle, W.D.- p.306188 Dept. of Interior #1 1850/06/24
- MEWI 4 Letter : Brobst, C.A.- p.88 Dept. of Interior #1 1849/08/01
- MEWI 4 Letter : Bromfield, G.A.- p.109 Dept. of Interior #1 1849/08/23
- MEWI 4 Letter : Brooke, F.T.- p.116 Dept. of Interior #1 1849/08/28
- MEWI 4 Letter : Brooke, H.B.- p.81 Dept. of Interior #1 1849/06/30
- MEWI 4 Letter : Brooks, De Souna- p.268 Dept. of Interior #1 1850/04/26
- MEWI 4 Letter : Brown, A.G.- p.169 Dept. of Interior #1 1849/11/22
- MEWI 4 Letter : Brown, A.G.- p.188 Dept. of Interior #1 1850/01/29
- MEWI 4 Letter : Brown, A.G.- p.217 Dept. of Interior #1 1850/03/04
- MEWI 4 Letter : Brown, A.G.- p.47 Dept. of Interior #1 1849/03/21
- MEWI 4 Letter : Brown, Bedford- p.291 Dept. of Interior #1 1850/06/04
- MEWI 4 Letter : Brown, David P.- p.134 Dept. of Interior #1 1849/09/25
- MEWI 1 Letter : Brown, E. 1827/12/24
- MEWI 2 Letter : Brown, Henry (to P.B. Ewing) 1872/04/20
- MEWI 2 Letter : Brown, Henry (to P.B. Ewing) 1872/04/20
- MEWI 2 Letter : Brown, Henry (to P.B. Ewing) 1872/04/20
- MEWI 2 Letter : Brown, Henry 1871/09/19
- MEWI 1 Letter : Brown, John 1829/01/18
- MEWI 4 Letter : Brown, N.P.- p.125 Dept. of Interior #1 1849/09/04