According to our family records, our Janet Leitch was "from Glenorchy", and married John MacKinnon around 1788. So I'm guessing she was the one christened 13 October 1771 in Kilchrenan (the next parish), daughter of Angus Leetch and Anne MacArthur. (This is from the IGI -- I haven't verified it yet with REAL records!) Siblings appear to be Effie, John, Janet, Donald, Anne and Peter. However, another Janet was born in Glassary, christened 14 July 1769. Maybe this is the family you are looking for?