Elizabeth S. Grigg (maiden name: Beam) was born around 1818 in North Carolina to Peter and Annie Beam. She married Christopher Grigg, and they had at least three children: Agnes, born around 1847; Caleb, born around 1851; and Marietta Hester, born around 1861. They lived in Cleveland County, North Carolina, and her husband worked as a farmer. By 1850, they owned $150 of real estate.
They moved to De Kalb County, Alabama, sometime in the 1850s, and her husband worked as a teacher there. They probably moved to Marshall County, Alabama, in the early 1860s. Her husband served in the Confederate army from 1863 to 1865. By 1870, he was working as a farmer, and they owned $800 of real estate and $563 of personal property. He died in April 1881, and she passed away in Alabama on January 16, 1897.