I'm from the other side of the river, in Renfrew, but I'm not familiar with Robb's Land. However it sounds like the name of a tenement, like some of the old tenements named 'something' Land off the Royal Mile in Edinburgh.
Land , n.
8. a. A holding of burgage land (normally built up) in a burgh. b. A building or group of buildings erected on such a holding. c. Freq. land and tenement, tenement and land , tenement of land , in the same applications.
(from a very comprehensive online Scots dictionary,
http://www.dsl.ac.uk/dsl/ )
I had a look at The Scotsman's online archive (
http://archive.scotsman.com )
and searching for
"Robb's Land" Yoker
it found 1 result - a news item from The Scotsman, on 5th Jan 1909, under the heading
"Electric Cars and Motor Van in Collision"
You have to pay to read the article, £7.95 for 24 hours access, but maybe you could find it on microfilm at a library.