It looks like you are correct. William Henry couldn't have been the guardian on that date. I didn't have the date of the guardianship. I just knew that it was said to be a guardianship. I'm related from the Salley side of the family. Ann Salley is my 1st cousin 5 times removed. Most of my information came from the Salley information. I just started working on the Pendarvis side, so I'm not sure about alot of the Pendarvis information. There seems to be alot of different tales. Anyway, here is what I have on William A. and William Henry being cousins.
James Pendarvis(1774-1782) and William Pendarvis(1775-1784)were brothers. Their sons William Henry Pendarvis and James Washington, Sr. were 1st cousins. Their sons William A. and William Henry would be second cousins.
Also Message #158 from Randy Floyd on this forum, states almost the same information that I received from the Salley side of the family. Here is what Randy wrote.
4. JAMES PENDARVIS (JOSEPH2, BRAND1) was born Bet. 1774 - 1782, and died Bet. 1817 - 1827. He married ANN CATHERINE. She was born Abt. 1775, and died August 09, 1825 in Mobile, Alabama.
Children of JAMES PENDARVIS and ANN CATHERINE are: i.DAU PENDARVIS, b. Bet. 1790 - 1800. ii.SON PENDARVIS, b. Bet. 1790 - 1800. iii.MARGARET PENDARVIS, b. Abt. 1801; d. October 17, 1825, Mobile, Alabama. iv.ELIZABETH PENDARVIS, b. Bet. 1801 - 1804; m. PHILIP T. DICKS, December 07, 1817, Montgomery Co., AL; b. Abt. 1790, SC. v.HARRIETT PENDARVIS, b. Abt. 1804; d. September 15, 1826, Mobile, Alabama. 10.vi.WILLIAM HENRY PENDARVIS, b. Bet. 1804 - 1805, SC; d. May 06, 1860, Mobile, Alabama. vii.JAMES A. PENDARVIS, b. Abt. 1808, SC; d. November 29, 1851, Mobile, Alabama. viii.EMILY PENDARVIS, b. Abt. 1815; d. August 15, 1825, Mobile, Alabama.