I don't see any reason to merge them.

Elizabeth b. 1739 has only her christening record and her parents. This all comes from a christening record source.

Elizabeth b. about 1754 has only a marriage record which does not include either age or parentage. None of the birth records for her children as found on her sources page have any indication of her age. So the "about 1754" is just an estimate. However in the 1770's it was probably far more common to get married and start having children at 16 than at 31.

Looking at that 1841 census, I don't see anything to suggest that Sarah Braund's maiden name was Fishleigh. In fact, that 1841 record in FamilySearch is attached to a Sarah Western ID M6Z7-6ZS.

Basically, you have nothing at all to suggest these two Elizabeths are the same person.

Keep researching! I would suggest as a first step coming forward and learning all you can about Elizabeth's children. Some of them have a lot of sources. Try to find them in every available census and make sure those census records are attached to them. Maybe you will get lucky and Elizabeth will be living with one of them. Contact all the users who have contributed to their profiles and see if they know anything more about Elizabeth. See if you can find out more about her husband. In particular check out that probate that is mentioned and see what it says about Elizabeth. See if you can find a headstone for him and hope that it includes information about Elizabeth, also.

Even if you can establish a earlier birth date for Elizabeth you will still need to establish who her parents are before you even consider merging two people who just happen to have the same name just because their birth years are close.

Assertions without evidence are not worth much.

Yes, I saw that christening record attached as a source.

There is no doubt about the existence of Elizabeth who got married in 1770 even though you have no information about when she was born, where she was born or who her parents are. What you need is some records for that Elizabeth that gives information about her birth and parents. Right now, even if you could find a christening record for an Elizabeth born in 1754 you could not assume that is the Elizabeth who married Leonard without something to convincingly connect the two Elizabeths.

Hi Larry,

I've just had a bit of a poke around to see if I could offer fresh eyes on this and I think the issues with the family of Leonard Fishleigh (KJWF-S3W) and Elizabeth Fursey (KVJ5-PRR) go beyond whether or not Elizabeth Fursey b. 1739, (M6Z3-XDC) is the same person, but lets start there.

Short answer, at this point I wouldn't merge them, but I also would rule it out. (Side not on merging, always try to keep the ID that has had the most previous contributions made to it, migrating across the relevant information from the discarded ID - this ensures the fullest contribution log for other contributors to follow changes that have been made. In this case, were you to merge the two, you would actually keep KVJ5-PRR and discard M6Z3-XDC after transferring relevant information).

The birthdate of 1754 appears to be an estimate with nothing to back it up. I can see why you you might draw the conclusion that the baptism in 1739 is the same, however this doesn't take into account variants in spelling - there are 17 baptism records for An Elizabeth/Eliz/Betty Fursey/Furse/Furs between 1730 and 1759 primarily in Devon, but also in Cornwall, Somerset and Wiltshire. This doesn't include records that Ancestry or FindMyPast hold that FamilySearch does not. It Is also working on the assumption that the marriage to Fishleigh was her first. See if you can find the original image to the marriage to Fishleigh if you haven't already, sometimes not all information is transcribed.

A death date would be helpful is finding her birthdate. A cursory search finds an ELIZABETH FISHLEY died aged  82 in 1842 in The Holsworthy Union… in the GRO index (Volume 09  Page 245) likely too young to be a match. Nothing hit for 'Elizabeth Fishleigh' Between 1837 and 1843, so she may have predeceased the advent of civil records. (The Elizabeth Fishleigh who died 1848 was married to a John Fishleigh). Two possible records are Elizabeth Fishleigh, died 1794 Milton Damerel, Devon, England and Elizabeth Fishleigh died 1808 Milton Damerel, Devon, England. Both indexed on FindMyPast Under Devon Burials. Unfortunately neither indexed record lists a birth date in the transcription, you would need to track down the originals to see if they shed more light.

I agree with @Gordon Collett that the original probate record of Leonard Fishleigh would be helpful. It is held by the Devon Archives and Local Studies Service (South West Heritage Trust) and doesn't appear to be available online, unfortunately.

However, I actually think that the 1841 census record that you mention is a match for Leonard Fishleigh and I think that the birthdate that has been ascribed to him in his profile is either in error OR he was baptised well after he was born. The age given in the census is 90 (remembering that ages were often rounded in the '41) giving an estimated birthdate between 1747-1751. When he dies in 1843 his age is given as 95 (GRO Reference: FISHLEIGH, LEONARD age: 95, 1843  J Quarter in THE HOLSWORTHY UNION IN THE COUNTIES OF DEVON AND  Volume 09  Page 235). This puts his birth as 1748.

There are four baptisms of a Leonard Fishleigh in Devon between 1720-1759. The currently ascribed 1754 child of Barth Fishleigh and Jane being one of them. However, there is also a christening  on 17 March 1748 
Thornbury, Devon, England. Parents Bartholomew Fishleigh and Christian. Which is in keeping with known birthdates later in his life. (Interesting that the father in both cases is named Bartholomew). The 1748 record is attached to KJWF-QQ6.