The above record is from an 1820 affidavit for John Clark. John lists all of his household goods and debts. He also lists the individuals living in his household in 1820. Richard Fox, aged 15 years is living in John's household. Richard was alive and not mentioned in William Barnum's will so Joel Fox may well have been alive, too.
Ruth Randall files papers as John Clark's widow on 28 Jun 1848. She states John Clark died on 04 Jun 1840. Ruth further states she married David Randall on 11 Nov 1840 and that he died on 15 Sep 1847. So we now have Ruth Barnum Fox Clark Randall!
I also copied the letter below used as a proof of Ruth Barnum's marriage.
The witnesses are Sarah Tenbrook and Rebeca Showens. They say they were present at Ruth's marriage. I wonder if these are her daughters? Sarah would have been 22 and Rebecca would have been 15 at the time. There is also another letter with a statement by Maria Stevens and Sarah Ruggles written on 04 Mar 1854 also confirming the marriage. I'll have to see what these other names turn up...