Isaac Coleman Gibbs was the eldest son of George Washington Gibbs by his first wife Margaret Faulkner (d. 1851 Grundy County, TN). Issac was born at what it now called Payne's Cove in Grundy County, Tennessee on 18 Oct 1848, one of two children (older sister was Nancy Jane) from George's first marriage. Issac removed to Texas at age 10 with his father and stepmother (Cynthia Nunley Gibbs) and many siblings in 1858. The family traveled by covered wagon and Issac, being the eldest boy, had the job of walking behind the mule and wagon to ensure nothing fell behind. In this way, he literally walked to Texas.

Issac married Sarah "Ellen" Rogers on 22 Jul 1872 in Denton County, Texas. Their children, all confirmed by vital records and/or the family Bible in the possession of granddaughter Pauline Key, were:

Ida Jane (1874-1934, m. Still, Husted)
Isaac Coleman (twin, died at or shortly after birth in 1875)
Otilla (twin, 1875-1888 died a child of 13)
Georgia Ann "Annie" (1876-1972, m. WC Leberman)
Mollie Pearl (1878-1949, m. GE Leberman)
Carrie Belle (1881-1970, m. Brown)
Ethel "Lela" (1882-1934 m. Waters)
James Andrew (1885-1962)
John Willis (1886-1918)
Susan Louella "Ella" (1889-1975, m. Burris)
Ola Clarice (1891-1916, m. Powell)
Mary Alice (1892-1985, m. Morrison)
Henry Coleman (1894-1972)

Issac and Ellen initially settled next door to her parents in Denton County. Issac was a subsistence farmer like his parents and Ellen's. He also hunted and sold the furs, saving money for a farm of his own by 1887, when he paid property taxes on 30 acres. In 1890, Ellen's widowed mother died, and her probate combined with the sale of their Denton County farm allowed Issac and Ellen to buy a bigger farm in Young County, 130 miles away. The sale was closed in May 1891 for 360 acres.

When Isaac and Ellen settled their family on the new Gibbs Farm in 1891, it was a wildly remote part of Texas, but farmers and coal speculators were moving in fast. The Gibbs Farm soon became the heart of now-defunct Orth, which from 1908 until the late 1930s had its own post office, retail shops, a school and a church, all benefitting from the Orth whistle stop along the Wichita & Southern Railroad. The town declined after the line was moved east to Jacksboro in 1947.

Isaac and Ellen were called Pappy and Mammy by their 53 grandchildren.

Ellen died of rheumatism at home on the Gibbs Farm in January 1938; Isaac died eight months later. Both are buried at "Orth Cemetery" which was originally called Gibbs Cemetery and still can be visited by permission at the rear of Gibbs Farm today.

The farm was inducted into the Texas Department of Agriculture's Family Land Heritage Program in 2007 and was still being operated by Gibbs descendants in 2019.