I've been working on this Simmons family group and I need help! The dates I have for some of the children are impossible - can anyone help me sort it out? Thanks!

Jonas J Simmons; b. 3 Feb 1857 Randolph; d. 8 Sep 1943 Upshur
Tabitha Strader; b. Mar 1858 VA; d. unk
marriage: 9 Aug 1883 Upshur
children:
1. Blain; b. c1884 WV; d. 18 Jul 1886 Upshur
2. Owen; b. May 1884 WV
3. George W; b. 1 May 1884 Barbour
4. J B; b. 14 Aug 1885 Upshur
5. Hiram Wilson; b. 22 Jan 1886 Upshur; d. unk; m. Sarah F Hamilton
6. Permelia Elizabeth; b. 28 Jan 1889 Upshur; d. 1978; m. Grover C Elbon
7. Andrew Sheridan; b. 6 Aug 1890 Upshur; d. Sep 1978 OH
8. Frank; b. 13 Dec 1893 Upshur; d. Mar 1973 OH
9. Berton H N; b. 23 Apr 1896 Upshur