Theodore Lyman III
| Theodore Lyman | |
|---|---|
| Lyman in uniform c. 1863–65 | |
| Member of the U.S. House of Representatives from Massachusetts's 9th district | |
| In office March 4, 1883 – March 3, 1885 | |
| Preceded by | William W. Rice | 
| Succeeded by | Frederick D. Ely | 
| Personal details | |
| Born | August 23, 1833 Waltham, Massachusetts, U.S. | 
| Died | September 9, 1897 (aged 64) Nahant, Massachusetts, U.S. | 
| Spouse | Elizabeth Russell | 
| Children | Cora Lyman, Theodore Lyman IV and Henry Lyman | 
| Parent | 
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| Signature | |
| Military service | |
| Allegiance | United States of America Union | 
| Branch/service | Union Army | 
| Years of service | May 1863 to April 20, 1865 | 
| Rank | Lieutenant Colonel | 
| Unit | Army of the Potomac | 
| Battles/wars | American Civil War | 
Theodore Lyman III (August 23, 1833 – September 9, 1897) was a natural scientist, military staff officer during the American Civil War, and United States Representative from Massachusetts.