Background
Leffler was born on his grandfather"s plantation, "Sylvia"s Plain," in Washington County, Pennsylvania, near Wheeling, Virginia (now West Virginia).
United States representative politician
Leffler was born on his grandfather"s plantation, "Sylvia"s Plain," in Washington County, Pennsylvania, near Wheeling, Virginia (now West Virginia).
He attended private schools and was graduated from Washington College in Washington, Pennsylvania, and from the law department of Jefferson College (now Washington & Jefferson College), in Canonsburg, Pennsylvania, in 1833.
Elected as a Democrat just as Iowa was admitted to the Union in 1846, Leffler went on to represent Iowa"s 2nd congressional district in the United States. House for two terms. He was admitted to the bar and commenced practice in Wheeling. In 1835 he moved to what is now Burlington, Iowa (then a part of Michigan Territory, the next year a part of Wisconsin Territory, and the next year the initial capital of Iowa Territory).
As statehood approached, he served as the permanent president of the Iowa constitutional convention in 1844, and a member in the second convention in 1846.
Upon the admission of Iowa as a state on December 28, 1846, he was elected as a Democrat to serve as one of two at-large Congressmen for the last two months of the Twenty-ninth Congress. He had also been elected to represent Iowa"s 2nd congressional district in the Thirtieth Congress from 1847 to early 1849.
In 1848, he defeated Whig (and future Republican) candidate Timothy Davis, then served in the Thirty-first Congress. He served as chairman of the Committee on Invalid Pensions in the Thirty-first Congress.
In all, he served in Congress from December 28, 1846, to March 3, 1851.
After his last term ended, he resumed the practice of law in Burlington, and farmed. In 1856 he attempted to regain his seat, running as a Democrat in a year in which Democrat James Buchanan was elected president He was an unsuccessful Democratic candidate for Governor of Iowa in 1875, losing to another Iowa pioneer, Samuel J. Kirkwood.
Leffler died at his home, "Flint Hills," near Burlington, on September 7, 1879.
He was interred in Aspen Grove Cemetery. He was the brother of Virginia Congressman Isaac Leffler.
Member Iowa Territorial House of Representatives, 1839, Iowa Territorial Council, 1841, served in either house or council until 1846. Member of convention in which constitution was framed with present Iowa boundaries, 1846. Member United States House of Representatives (Democrat) from Iowa, 29th-31st congresses, 1846-1851.
Married Elizabeth Parrott, 1840.