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Mead, Samuel B. Nov. 7, 1848
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Mead, Samuel B. Apr. 12, 1849
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Mead, Samuel B. Dec. 11, 1858
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Mead, Theodore L. Nov. 17, 1888 [to S. Watson]
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Mears, Ellis Mar. 3, 1891 [to S. Watson]
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Meehan, Thomas July 20, 1858
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Meehan, Thomas June 7, 1878
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Meehan, Thomas June 21, 1879
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Meehan, Thomas Feb. 18, 1880
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Meehan, Thomas [Feb. 1880]
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Meehan, Thomas Feb. 24, 1880
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Meehan, Thomas Dec. 14, 1882
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Meehan, Thomas Mar. 12, 1881 [to S. Watson]
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Meehan, Thomas July 1, 1881 [to S. Watson]
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Meehan, Thomas Nov. 6, 1885 [to S. Watson]
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Meehan, Thomas [Jan.] 4, 1887 [to S. Watson]
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Meehan, Thomas July 22, 1887 [to S. Watson]
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Meehan, Thomas Aug. 1, 1887 [to S. Watson]
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Meehan, Thomas Jan. 15, 1888 [to S. Watson]
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Meehan, Thomas Apr. 28, 1888 [to S. Watson]
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Meehan, Thomas Oct. 2, 1889 [to S. Watson]
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Meehan, Thomas Apr. 20, 1891 [to S. Watson]
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Meehan, Thomas Apr. 25, 1891 [to S. Watson]
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Meehan, Thomas Oct. 13, 1891 [to S. Watson]
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Meehan, Thomas undated [to S. Watson]
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Meisner, Carl F. Aug. 21, 1839
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Meisner, Carl F. Aug. 31, 1842
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Meisner, Carl F. Mar. 28, 1843
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Meisner, Carl F. Sept. 3, 1869
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Meisner, Carl F. Feb. 17, 1872
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Meisner, Carl F. Feb. 11, 1873
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Mellichamp, Joseph H. Nov. 22, 1871
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Mellichamp, Joseph H. Nov. 8, 1875
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Mellichamp, Joseph H. Nov. 1, 1876
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Mellichamp, Joseph H. Dec. 6, 1876
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Mellichamp, Joseph H. June 6, 1877
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Mellichamp, Joseph H. July 31, 1880
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Mellichamp, Joseph H. Dec. 14, 1885
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Mellichamp, Joseph H. May 25, 1886
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Mellichamp, Joseph H. Aug. 24, 1887
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Mellichamp, Joseph H. Nov. 21, 1894 [to W. M. Canby]
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Melloni, Macedonio Feb. 15, 1854
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Ménand, Louis Sept. 25, 1889 [to S. Watson]
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Menzies, Archibald Feb. 20, 1838 [to N. B. Ward]
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Miers, John Jan. 6, 1844
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Miers, John July 31, 1852
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Miers, John Feb. 8, 1854
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Miers, John Oct. 28, 1854
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Miers, John June 5, 1855
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Miers, John Dec. 20, 1855
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Miers, John Nov. 29, 1856
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Miers, John June 30, 1857
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Miers, John June 30, 1857 [enclosed drawing]
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Miers, John undated drawing
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Miers, John June 24, 1858
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Miers, John Dec. 30, 1858
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Miers, John Feb. 23, 1859
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Miers, John Mar. 30, 1871
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Miers, John May 4, 1871
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Miller, Elihu S. Nov. 1, 1889 [to S. Watson]
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Miller, Elihu S. Sept. 7, 1891 [to S. Watson]
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Miller, Elihu S. Oct. 6, 1891 [to S. Watson]
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Mills, J. H. Aug. 11, 1890 [to S. Watson]
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Mills, J. H. Sept. 16, 1890 [to S. Watson]
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Mills, J. H. Feb. 3, 1891 [to S. Watson]
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Mills, J. H. Apr. 10, 1891 [to S. Watson]
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Mills, J. H. Aug. 7, 1891 [to S. Watson]
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Millspaugh, Charles F. undated note
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Millspaugh, Charles F. Oct. 19, 1888 [to S. Watson]
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Millspaugh, Charles F. Dec. 15, 1888 [to S. Watson]
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Millspaugh, Charles F. Dec. 17, 1888 [to S. Watson]
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Millspaugh, Charles F. Dec. 18, 1888 [to S. Watson]
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Millspaugh, Charles F. Feb. 18, 1889 [to S. Watson]
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Millspaugh, Charles F. Oct. 21, 1889 [to S. Watson]
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Millspaugh, Charles F. Nov. 5, 1889 [to S. Watson]
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Minot, Charles S. Jan. 15, 1890 [to S. Watson]
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Millspaugh, Charles F. Mar. 19, 1891 [to S. Watson]
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Millspaugh, Charles F. July 17, 1891 [to S. Watson]
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Millspaugh, Charles F. July 18, 1891 [to S. Watson]
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Miquel, Friedrich A. W. Feb. 15, 1852
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Miquel, Friedrich A. W. Nov. 4, 1852
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Miquel, Friedrich A. W. May 1861
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Miquel, Friedrich A. W. May 3, 1861
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Miquel, Friedrich A. W. Dec. 17, 1864
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Miquel, Friedrich A. W. Jan. 1864
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Miquel, Friedrich A. W. Mar. 5, 1864
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Miquel, Friedrich A. W. Mar. 5, 1864 [enclosed note]
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Miquel, Friedrich A. W. Sept. 1864
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Miquel, Friedrich A. W. Mar. 30, 1866
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Miquel, Friedrich A. W. July 8, [1866]
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Miquel, Friedrich A. W. Dec. 1866
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Miquel, Friedrich A. W. July 1867
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Miquel, Friedrich A. W. Nov. 7, 1867
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Mitten, William Oct. 30, 1869
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Mitten, William Sept. 10, 1891 [to S. Watson]
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Miyabe, Kingo June 23, 1889 [to S. Watson]