Mary Elizabeth was the daughter of Jacob Brinley and Nella Sappington. Jacob married Rhoda Powell 24 Dec 1856, in Smith County, Texas.

Jacob died in Kaufman, Texas in 1861 and Rhoda died before 1860.

Maybe this will help
Her obituary gives some detail as reproduced on the Lamar County Death & Cemetery Records Web Page:
The Paris News, Wednesday, June 14, 1916. Died Suddenly After A Prolonged Illness Mrs. Mary Elizabeth Stell, the wife of Dr. W.W. Stell, died suddenly yesterday afternoon at 4 o'clock after a prolonged illness lasting several years. She had been sitting up and laughing and talking to her husband and son, Reb Stell, who stepped out in the hall for a few minutes and when they returned to the room they found her bent forward dead in bed. The immediate cause of her death is supposed to have been heart failure or a stroke of paralysis. Before marriage the deceased was Miss Mary Elizabeth Brinley, and she was born March 14, 1840, in Hempstead county, Ark. Her parents were Jacob and Eleanor Brinley. She moved with the family to Cherokee county when she was only three years old. She was married to Dr. Stell Dec 2, 1865. She was converted in early youth and joined the Methodist church of which she was a consistent member, being a daily reader of her bible when physically able to read. She is survived by her husband and three sons and a daughter, Dr. W.M. Stell of Mexico, Dr. Geo. S. Stell and Reb L. Stell of Brownsville and Mrs. Nellie Easley of Redding, CA. The youngest son, Reb Stell was with her when she died. Owing to the long distance which the others live they will be unable to attend the funeral, which will be held at the family residence east of town at 4:30 o'clock this afternoon. Rev. W.T. Whiteside, pastor of Lamar Avenue Methodist Church will officiate. From Rodgers & Wade Furniture Co. Funeral Records in possession of Fry & Gibbs Funeral Home; Book #9; p. 66; Service # 145; Mary E. Stell; charge to deceased; ordered by W.W. Stell; date of funeral, 14 Jun 1916; services at residence, E. Paris, 4:30 pm; Clergyman, Whitesides; Physician, J.M. Hooks; date of death, 13 Jun 1916, 4:15 pm; Married; age 76 years; interment at Evergreen; casket 5/9 $125.00; vault $75.00; car for flowers $2.00; hearse $10.00; 4 carriages $20.00; coach $6.00; Total $244.00. Index to TX Death Records 1903-1940, Vol. 46, Sanders thru Volume 54, Wells: Stell, Marye, 6-13-16, #14837. From these records we know that Jacob Brinley and wife Eleanor were living in Hempstead Co. Arkansas in 1840 when Mary Elizabeth Brinley was born. She moved with the family to Cherokee county, Texas in 1843. Hempstead County Arkansas marriage records (Book BB, pp. 356-357) show that Jacob Brinley married Mrs. Jane Jacobs, daughter of William Wingfield, on February 27, 1842. The 1850 Cherokee Co., Texas census shows: Jacob Benley (Brinley), 50, b. Ky. Jane (Wingfield Jacobs) wife, 33, b. Ill, Bening, 29, b. Mo., Nancy E. 19, John 15, Stephen 12, Elizabeth 10 (Mary Elizabeth Brinley Stell), Jacob 5 (all b. Ar.), Allis, 3, Wallace 9/12 (all b. Tx), Jacobs, W. age 16, b. Ar, John 13, b. Ar. Posted for Mike Hutson Hut1020@aol.com