John Thomas Lenahan | |
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| Member of the U.S. House of Representatives from Pennsylvania's 11th district | |
| In office March 4, 1907 – March 3, 1909 | |
| Preceded by | Henry Wilbur Palmer |
| Succeeded by | Henry Wilbur Palmer |
| Personal details | |
| Born | November 15, 1852 Jenkins Township, Pennsylvania |
| Died | April 28, 1920 (aged 67) Wilkes-Barre, Pennsylvania |
| Political party | Democratic |
John Thomas Lenahan (November 15, 1852 – April 28, 1920) was a Democratic member of the U.S. House of Representatives from Pennsylvania.