I don't think anyone has posted the extract from William Fee McKinney's notebooks (T1013/2B p347) before so here it is:
Alley Orr d. 26 Jan 1791 aged 51
William Orr born 1766 died 14 Oct 1797
Isabella Greer born 1768
married August 1788
Samuel Orr born 2 Jun 1789, married Martha Wilson, died 19 Jul 1824
Jane Orr born 17 Mar 1791, married George Sloan
John Orr born 16 Feb 1793, married Eliza Jolevery, died in Longford
Allice Orr born 2 Jun 1794
Isabella Orr born 1 Aug 1796, married William Wilson
Wilmina Orr born 17 Apr 1798, married John Orr
The birth dates may infact be baptism dates. He goes on to mention:
Here lieth the body of Alley Orr who departed this life January 26, 1791 aged 51 years.
Names of John's 4 children: Eliz: Ctn [?], Wm, Edwd, Isabel: & John.
Sam's 3: James, Alicia Isa: & Wm.
I think William (Remember) Orr's father is recorded somewhere as Samuel Orr. Is "Alley" a possible nickname for Samuel, or is it his mother's name?
At the bottom of the page McKinney records the family of John Orr who married Wilhelmina Orr (the daughter of William Orr born after he was hanged):
Samuel Orr died 31 Mar 1807
married Ellen Harper
Fanny Orr married Henry McAnally
Ellen Orr married Matthew White ... to America
John Orr married Wilhelmina Orr
Mary Jane Orr married Thos. Craig
Margaret Orr born 1 AUg 1798
Alexander Orr born Aug 1803 died 28 Feb 1807