W. D. Moore, Harell Steam Heating Co. to Thomas Lincoln Casey, November 23, 1893

W. E. Bailey to Thomas Lincoln Casey, March 2, 1889

W. E. Cutshaw to Thomas Lincoln Casey, August 9, 1884

W. E. Niblack to Thomas Lincoln Casey, April 20, 1870; Colonel A. A. Humphreys to Thomas Lincoln Casey, April 29, 1870

W. E. Niblack to Thomas Lincoln Casey, undated

W. F. Cogswell to Thomas Lincoln Casey, April 20, 1882

W. G. Doman to Thomas Lincoln Casey, July 11, 1872

W. G. Donnen to Thomas Lincoln Casey, February 17, 1873

W. H. Collins to William J. Warren to Thomas Lincoln Casey, September 30, 1893

W. H. H. Miller to Thomas Lincoln Casey, April 13, 1889

W. H. Houghton Manufacturing Co. to Thomas Lincoln Casey, November 16, 1893

W. H. Houghton to Thomas Lincoln Casey, December 1, 1893

W. H. Houghton to Thomas Lincoln Casey, November 21, 1893

W. H. Lowdermilk to Thomas Lincoln Casey, November 20, 1895

W. H. McKnew to Thomas Lincoln Casey, December 13, 1882

W. H. McKnew to Thomas Lincoln Casey, December 19, 1882

W. H. Rearden to Thomas Lincoln Casey, December 7, 1878

W. H. Walker to Thomas Lincoln Casey, May 18, 1893

W. J. Twinning to Thomas Lincoln Casey, June 17, 1880

W. J. W. to Thomas Lincoln Casey, August 7, 1876

W. J. W. to Thomas Lincoln Casey, October 16, 1893, memo

W. K. Rogers to Thomas Lincoln Casey, undated [November 1880]

W. M. Black to Thomas Lincoln Casey, December 20, 1894

W. Maxwell Greene to Thomas Lincoln Casey, April 12, 1882

W. Maxwell Greene to Thomas Lincoln Casey, August 30, 1855

W. Maxwell Greene to Thomas Lincoln Casey, August 7, 1886

W. Maxwell Greene to Thomas Lincoln Casey, February 11, 1856

W. Maxwell Greene to Thomas Lincoln Casey, February 17, 1882

W. Maxwell Greene to Thomas Lincoln Casey, February 28, 1882

W. Maxwell Greene to Thomas Lincoln Casey, March 1, 1856

W. Maxwell Greene to Thomas Lincoln Casey, March 3, 1882

W. Maxwell Greene to Thomas Lincoln Casey, March 7, 1882

W. Milner Roberts to Thomas Lincoln Casey, September 11, 1876

W. O. Talford to Thomas Lincoln Casey, December 13, 1893

W. P. Blake to General Andrew A. Humphreys, December 14, 1870

William Blackwood to Major George H. Elliot, June 28, 1862

William Blackwood to Thomas Lincoln Casey, January 12, 1864

William Blackwood to Thomas Lincoln Casey, September 2, 1862

William Crapo to Thomas Lincoln Casey, January 30, 1880

William D. Whipple to Thomas Lincoln Casey, April 8, 1872

William D. Whipple to Thomas Lincoln Casey, October 1, 1880

William E. Niblack to Thomas Lincoln Casey, January 23, 1886

William F. Reed to Thomas Lincoln Casey, December 25, 1895

William Gilman to Thomas Lincoln Casey, September 3, 1856

William H. Bixby to Thomas Lincoln Casey, August 22, 1887, December 7, 1887, May 29, 1888, copy

William H. Bixby to Thomas Lincoln Casey, March 21, 1889

William H. Browning to Thomas Lincoln Casey, September 4, 1895

William H. Burr to Thomas Lincoln Casey, December 5, 1895

William H. Burr to Thomas Lincoln Casey, November 29, 1895

William H. Chaffee to Thomas Lincoln Casey, April 29, 1889