Hi Kiwikate , think their may be another daughter to Daniel Ferguson and Janet McLaren , with the surname McLaren spelt McLeran. their is a Catharine born on 28th March 1784 , on familysearch.
had a look on scotlandspeople , and Catharine born at Wester Glentarken , just along lochside from Dalchruin.
i have many links to this area , both on paper and with dna test through Clan MacLaren society. i am related as a McLaren , too Kings , Mcintyres etc from this area.
Both my 3 x g/grandparents died at Dalchruin in 1867 of scarlet fever.
A picture of the old cottage at Dalchruin , replace tin with heather thatch on the roof , the railway line ran along the back of here , hence the change to tin , too many sparks igniting thatch roofs.
yours gordon