Websites confuse the issue as much of what they have are harvested/collected data, unchecked, unproved and pass them off as 'records' which they are not. The ONLY records you can trust online on ANY website is an image of the actual record, ALL others are just a clue where to look....
So for example if FindMyPast have the national burial index then they are just harvested information passed off as a record(
http://www.ffhs.org.uk/burials/nbi-overview.php)
So based on the information from FindMyPast which is a 'clue' it will depend on what other 'records' or information you have if you can cross reference or not as you can only really cross reference real parish records ( images of those records)
1700-1850 can be a difficult time to research simply proving connecting records is difficult and it can be tempting to just copy and paste from websites whatever they 'throw up' as 'matches' but all they are doing is chasing names. dates, place and there is always more than one person of the same name, about the same date living in the same area and websites do not have all the records ( or information) they only have a tiny percentage, so that is great disadvantage and if you haven't done any ( or very much) research offline pre 1850 is a difficult starting point to learn
Mark Kirby wasnt/isn't buried at the Cathedral but is in their 'books'.
So start by looking at what 'their books' are, that way you can soon check to see how relevant that information is.. is it an image of a real record or just an index, transcription etc.
Then look to see the last person you have you can prove meaning you have all the real records that person generated during their lifetime, so eg someone born in 1850 will have a birth cert ( civil) likely a baptism record ( church, so PR, BT and if still existing day book) 1851 census, you have three records to cross reference, where as someone born in 1820 you are looking for a baptism record which may or may not give parents names, a church marriage record and could have been married before the 1841 census, so you could have no parents listed on any of them even if the father is listed on bap/marr it could be a lie........ my great grandfather married twice 1st in 1884 2nd in 1922 he lied about who his father was both times ( and he knew who he was)
You likely know all that, so sorry for repeating if you do although I know we all have tunnel vision at times with 'our own' ancestry so it is always worth fresh eyes.
If you 'know/can prove' Ripon then start there and go to Genuki check out the Ripon page, eg what churches there are, when were they opened that way you can narrow down ones relevant to your ancestors dates, then look at churches nearby