The case you are referring to is found in the Petitions to Charleston District Equity Court.Bills, Petitions, Writs, Reports, etc are all included in the same index, but are numbered exclusively and filed separately.The Petitions have not been filmed.
In the particular petition you asked about, the children and heirs of the first marriage of John Moorer are requesting that his estate be divided even though one of the children of his second marriage is under 21.The intent of his will is being debated.Of John Moorer's older children, Catherina Moorer, deceased by the time of the petition, had been married to Josiah Pendarvis, son of Thomas Pendarvis, Sr. and his second wife Elizabeth, and had left 5 children (John, Joshua, Jacob, Betsy, and Catherine), all of whom were under age in 1819.
From other sources it can be determined that of Josiah and Catherina's children, John is the John "Siah" mentioned in David Gavin's journal.This John is not the John who fathered John Enoch, Lewis M, Mary, Dorcas, and perhaps others by his wife Elizabeth, but was the John who married first Margaret and had at least two children, Renvy and William, and later married Evan M Pendarvis.Jacob, son of Josiah and Catherina, moved to Rankin Co, MS with the Reeves family.Joshua, son of Josiah and Catherine, married an Elizabeth and had several children living in St. George in the 1850 census, though he died before 1850.I don't know what became of the daughters Betsy and Catherine, but suppose they lived long enough for David Gavin, who was born in 1811, to have known them as he off-handedly mentioned John "Siah's" sisters.
John Moorer's youngest child, Celia, was the first wife of the William Wamer who later married Joshua Pendarvis' daughter Amanda.This Joshua died in 1830/2, and was not the Joshua, son to Josiah and Catherina Moorer Pendarvis.
The Inabinets that you mentioned were the widower (John) and children of the oldest Moorer girl, Margaret.She was deceased by 1819 and had left three children: Jacob, Margaret, and Catherine Inabinet.Catherine was married by the time of the petition to Thomas Rumph.