I have been working on the Jacklin/Jackling family from Cambridgeshire also.This is not my family line but a line from my aunt who married a widower and his daughter married a Jacklin.His name was Benjamin Jacklin B. 1897 Enfield, Middlesex and was sent to Canada as a Home Child.I have been doing the research as Benjamin has grandchildren who are interested.
I have been working on the brother to Joseph Jacklin/Jackling, James Jacklin 1809-1889 who married Ruth Bullen & Mary Newman Johnson.Parents:Thomas Jacklin 1777 & Sarah Lester 1779. Your information on the parents you have given as far as I can see, are correct.I have the father of Thomas Jacklin 1661 as Thomas Jacklin and no info. on his wife.