Thanks entirely to the family research of John Van Luyn and Bob Starling, we can now say our search for Jacob has narrowed considerably.
On this Google Earth image I have placed him on either Lot 6 or Lot 7, superimposing information from the maps John and Bob found. Jacob does seem to have been a bit of a villain at times too, so the complex now up the road is a touch ironic.
The evidence is these two maps, one from 1854, the other – the clincher – from a survey plan. The shading is mine, of course.
Kudos again to John Van Luyn and Bob Starling!
Bob wrote: “I have managed to obtain a plan of the Market Lane area where Jacob was
known to have resided probably with William MacDonald…”
Today Market Lane, extended, is Wentworth Avenue.