Born in Charlottenburgh, Canada West, the third son of Roderick McLennan, McLennan worked in construction of railways and other public works, including sections of the Canadian Pacific Railway north of Lake Superior.
Roderick Murchison | Roderick Williams | Roderick Walker | Roderick MacFarquhar | Roderick Haig-Brown | Marsh & McLennan Companies | John Ferguson McLennan | Roderick Paulate | Roderick Gradidge | The Adventures of Roderick Random | Sir Nicholas Roderick O'Conor | Roderick Oliver Redman | Roderick James "Jess" McMahon | Roderick Cook | Roderick | Scotty McLennan | Roderick Welsh | Roderick Taylor | Roderick (novel) | Roderick McLeod | Roderick Macleod, 2nd of Cadboll | Roderick L. Ireland | Roderick Firth | Roderick Charles MacDonald | Roderick Campbell | Roderick Blakney | Roderick Alleyn | Roderick Alastair Brook Learoyd | McLennan County, Texas | McLennan County |
For the 42nd Congress, he was a member of the Committee on Freedmen's Affairs, and for the 43rd Congress, he was a member of the Committee on Indian Affairs.
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During the 41st Congress, he served on the Committee on Elections and the Committee on Revolutionary Pensions.
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During the 40th Congress (1867–1869), Butler served on the Committee on the Revision of Laws (now part of the Judiciary Committee).