Fellows was born March 14, 1812 in Luzerne County, Pennsylvania, one of thirteen children born to Abiel Fellows, Junior., and his third wife, Dorcas Hopkins. At the age of seventeen he joined his father in moving to Kalamazoo County, Michigan, where he eventually bought his own farm and farmed for about a decade.
The couple were to have eleven children, six of whom survived to adulthood. In the spring of 1840, the family moved to Wisconsin Territory, settling in the southeast corner of Walworth County on about half a square mile of land in Sections 34 and 35 on the south edge of the county and of the state, creating a homestead where he would live for the rest of his life. This was frontier country, wild and without roads.
Fellows had to blaze the trees in order not to lose his way.
In addition to farming, Fellows also worked as a merchant in his early years. He was first elected in 1844 in a special election, elected and served as chairman in 1846, and elected again in 1849 and 1850.
In 1846 he was also elected to his first term on the county"s board of supervisors. Although his father had been a Democrat, Fellows was initially aligned with the Whigs.
He did not return to the Assembly, and was succeeded by Whig Phipps West. Lake.
Upon the organization of the Republican Party, Fellows became an enthusiastic member and supporter thereof. Fellows was elected to several more terms on Bloomfield"s board, in 1856, 1857, 1865, 1868 (serving again as chairman), and one final time in 1878 (again becoming chairman). In 1873 he was elected to the county board for the third and final time.
They are buried at Hillside Cemetery in Genoa City, Wisconsin.
Fellows served repeatedly as chairman or member of the town board of supervisors of Bloomfield, after it was created upon the partitioning of Geneva into four towns. In 1851 he was elected to the Assembly for a one-year term, as a member of the Free Soil Party (although at least one paper referred to him as a "Free Democrat"), defeating Hilton West. Boyce and Moses Seymour. And he was re-elected in 1852 (the district now consisting of the Towns of Bloomfield, Linn and Walworth), defeating Whig Lewis North. Wood (who had served in that year"s session with him)) and Albert Y. Wheeler.
