Hello Pettsy,
Paisley trade directories list the following:
1838/39
Munn, Armstrong, manufacturer, 35 Storie Street
Munn, James, manufacturer, 6 Causeyside – house 13 George Street
1829/30
Munn, Armstrong, manufacturer, 45 Storie Street
Munn, James, manufacturer, 17 George Street
Can you tie this James into your family? I would assume that it is he who is buried in Abbey Close.
My ggggf was also a manufacturer in Causeyside at that time. Like him, these Munns (brothers??) were most likely shawl manufacturers, which meant that they placed orders with a various weavers, stored and sold the finished shawls.
The library in Paisley has directories from 1813. When I next go over, I take a look.
Justin