Hi. I have lots of ancestry in Wistow, going back to at least the 1630s right into the 20thC... including the Thompsons and Goltons - no Storrs but they do appear as witnesses on wedding certs once or twice.
One of my ancestors, Richard Golton, was also Wistow sexton - I think at a date before your's - and there is no gravestone for him but he is recorded as sexton in the parish records. Ironically, sextons rarely seem to have a gravestone themselves often as they're drawn from the ranks of poorer parishioners. (Some of my Goltons are down as 'paupers' in the parish records).
The Storrs were an extremely well established old yeoman farming family. There is still a Mr Storr in Cawoody. (he has the wood yard opposite and just down from Cawood Castle). He and I are probably the only true locals left round here as it's all incomers now! PM me if you are ever in the area and I will tell you where he can be found!
Can get over and have a look later in the week if no=one else can, for your MIs...as my husband is working this weekend so no car. I only live a couple of villages away. If you look on the 'Access to Archives' and go into 'East Riding' you will find loads of Storr refs no doubt. A 17thC or 18thC Storr wrote a diary which is fascinating reading and has been published - you may be able to find some info online. He farmed at Scalm Lane which is kind of near Biggin/Cawood way.
Off the top of me head don't recall a Storr M.I but I may be wrong. One of my ancestors was vicar of Wistow 1652-1665 and there is not one trace of him or our family, inside the church. He is not even listed on the list of vicars - as he was appointed by parliament and got rid off when the monarchy came back. That really annoys me! There is a tomb of the Beverley family inside the church which is also one of my ancestors. Anyone going, try and track down the keyholder as the church has some of the most interesting things inside of any church round here!
If no-one else gets there I will try later this week.
My Wistow names include: Rawson/Rowson, Beverley, Byard, Thompson, Golton, Glew, Turner, Shillito, and Richardson Abbot. If any of those ring bells do get in contact!