Hi,
Julia again.
If this is any help, my G-grandmother, a Betsy White Hardie (mother of "James Hardie or Paterson, later James Paterson Reid, later James Reid Walker!), married a William Paterson @ 113 Skene Street, Old Machar, Aberdeen, on 14th Dec 1883. There is an M R JOSS as a witness.
I've found 3 children from that marriage from the 1891 census living in Huntly Street, Old Machar, as ANNIE S , AGNES J & JANE L Paterson.
Then I found a birth Entry from GROS for Agnes Ann JOSS Paterson, b @119 Skene St, Old Machar 4th Oct 1884.
Hope this helps with your Joss research?
best regards,
Julia