I'm not very familiar with pre-registration parish records for Nottinghamshire and hope there is a resource someone has access to for old marriages.
Hugh Morrison and wife Mary lived in Hose, Leicestershire.
Mary was born in the late 1770s in Colston Bassett per censuses.
Mary and Hugh's oldest known child was baptised in Leicestershire in 1797.
So the marriage could have been in Nottinghamshire or over the border in Leicestershire.
If there is no joy in Nottinghamshire, I will ask in Leicestershire, where the marriage may more likely have been.
It could also have been a second marriage for Hugh Morrison, who was older than Mary, who may not have been the mother of that child.
All baptisms of children 1797-1818 show mother's name Mary.
The surname is sometimes spelled MORISON for the baptisms at FamilySearch. For the two earliest births the father is Henry, for the first, and Humphrey, for the second, but I am sure they are the same couple (the son of "Henry" is with the couple in a census).
But a marriage might be under one of those names, i.e. Hugh, Humphrey or Henry Morrison + Mary.
FS shows these baptisms for Marys in Colston Bassett during the right period, in case it helps:
Burrows 1776, Spencer 1777, Stains 1777, Smith 1778.
Hugh Morrison will likely be ever a mystery: he was born in "Ireland". Knowing who Mary was would at least give me a little more to tell my mum about her roots in that direction.
Many thanks to anyone who has a look -- and happy holidays to all from Canada!
