Statistics for occurrence #1 of “E. Watson Arnold” in chapter 12, page 483 of William Schouler, A history of Massachusetts in the Civil War: Volume 2:

...d H. Bates, Phillips Curtis, N. H. Hunt; in 1862, 1863, 1864, and 1865, David H. Bates, William F. Locke, Levi W. Hobart. The town-clerk in 1861, 1862, and 1863 was Noah Torrey; in 1864 and 1865, E. Watson Arnold . The town-treasurer during all of these years was Jonathan French.
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E. Watson Arnold 4 4 0 0 0 user votes

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