I am a descendant of Robison Jacklin's daughter Ann Jacklin (1841). She only shows up on 1861 Census for Osprey, and the family surname is listed incorrectly as "Gachlin". Farther down the same page is Robison's mother-in-law Ann Mathewson, and Ann Jacklin's little girl Janet Cameron. Ann Jacklin had 3 spouses: Cameron, Walker and Chapman. She moved from Parry Sound District to Manitoulin Island, and eventually to British Columbia.
Robison's other daughter, Elizabeth Jacklin (1844) seems to have married her cousin William Mathewson.