I now have on hand a copy of a document wherein James Hungerford testfies he was a witness to the August 1852 marriage between Robert Harget and Sarah Ann Hungerford. The document was prepared in regard to obtaining pension benefits for her minor children after Robert's death. The last sentence reads: "I am brother of Sarah Ann Harget and that I am not interested in this claim." That is followed by James Hungerford's name and mark.
Since Sarah's younger brother Hiram claimed Annie Beebe as mother, this document nicely ties them all together.