One, named as Jeanie on the Poor Relief application, turned out to be Jane McKillop MacDonald born 6 January 1892. She was named after her father's mother.
However, Mary born 20 February 1895 according to the PR application, cannot be found in the SRI Birth search on SP.
While I already knew of Mary's existence as grandaughter of Margaret's father, as noted in the 1901 census of his household, I hadn't actually connected her as being my Gran's sister. I thought she was just a wee visitor!
Mary is supposed to have been born at 82 Mansion Street Barony, but Barony isn't on the list of parishes in the SRI search! There is a Mansion Street currently in Cambuslang and the Valuation Rolls have a Mansion Street but the area is given simply as Glasgow!
I've even searched for her as Marion, her mother's sister's name, but no luck there either. Not that this helps a lot as my Gran's (known) sister was named Georgina and I have no idea where THAT came from, (never found any George rellies in this line either).
Any suggestions what to try next would be appreciated