According to Pedens of South Carolina, William was b. 1773 Chester Co SC and died before 1850, Fayette Co AL He only had 1 wife that we know of, He died before the 1850 census. Meaning This William as he is written is not the William who was the son of John and Jane.
The Children of William Morton and Mary Stanford were:
1. James B. Morton b. abt. 1800 in SC
2. Thomas L. Morton b. abt 1800 in SC
3. Agnes Emoline Morton b.a. 1803 d. 1857 Johnson county, TX
4. John Morton b. abt 1804/5 SC d. bef 1840 m. Isabella UNK Fayette County, AL
5. Martha Morton b. 28 Jun 1810 TN d. 20 Mar 1891 Lamar Co AL
6. Mary Morton b. 27 Dec 1811 TN d. 13 Sep 1873 Sanford, AL
7. Alexander Peden Morton b, 27 Apr 1813 Covington, Giles, TN d. d 29 Jul 1862 Grant Co, AR. (LKA 1860 Lafayette Co AR)
8. William Morton b.a 1814 Maury Co TN