Educated Gould’s Academy, Maine. 2 years at Bowdoin; (honorary Master of Arts, Delaware State College, 1854).
He was the fourth Governor of Oregon, represented Oregon in the United States House of Representatives, and served one term in the United States Senate. He moved to Oregon in 1851 and began his law practice in Salem. The Oregon Territorial legislature elected him prosecuting attorney for Oregon"s second judicial district and auditor of public accounts for the Oregon Territory.
In 1854, he was appointed by the United States Department of the Interior to audit the claims from the Rogue River Indian War.
He was appointed by the Secretary of War in 1856 to a board of commissioners to audit the Indian war expenses of Oregon and Washington. After statehood
In 1857, he was a delegate to the Oregon Constitutional Convention, representing Marion County.
He did not run for reelection in 1858, and resumed his law practice and the manufacture of woolens. Grover was elected Governor of Oregon in 1870 and was reelected in 1874.
He served as governor until 1877, when he resigned to serve in the United States Senate.
Grover served in the Senate from March 4, 1877, to March 4, 1883, serving in the 46th United States Congress as the chairman of the Senate Committee on Manufactures. He did not run for reelection in 1883. Electoral college dispute
During the 1876 Presidential Election, Oregon"s statewide result clearly favored Rutherford Hayes, but then-governor Grover claimed that elector John Watts was constitutionally ineligible to vote since he was an “elected or appointed official”.
Grover substituted a Democratic elector in his place.
The two Republican electors dismissed Grover"s action and each reported three votes for Hayes, while the Democratic elector, C. A. Cronin, reported one vote for Samuel Tilden and two votes for Hayes. The vote was critical because the electoral college without John Watts"s vote was tied 184–184.
A 15-member Electoral Commission ultimately awarded all three of Oregon"s votes to Hayes. Grover resumed his law practice, retiring from public life.
Grover died in Portland, Oregon, on May 10, 1911, and was interred in River View Cemetery.
From 1853 to 1855, he was a member of the Territorial House of Representatives. When Oregon gained statehood, he was elected to the 35th United States Congress as Oregon"s member of the House of Representatives, serving from February 15, 1859, to March 4, 1859.
Married Elizabeth, daughter