every site states as ollie, funnily enough minutes from a parish council meeting refer to it as oliver vyes:
https://www.corfecastleparishcouncil.gov.uk/archive-2015/

and an old postcard sold on ebay describes it as oliver:
https://www.ebay.co.uk/itm/265564165412

However maybe this may be confusing as it is signposted Ollie Vyse