STREET SIGNS

I seem to remember a lot more of these in Centretown Ottawa- street name signs attached to the sides of buildings. But when I went searching for them only four (and a ghost) turned up.

Cartier Street and Park Avenue
This integrated street sign is on the Purcell house. Jack Purcell was a community leader active in the neighbourhood's recreation programming. He lived here at 190 Cartier Street until his death just prior to the opening of a new community centre on Elgin Street, which was named in his honour.
The Cartier St and Park Ave signs are actually on the front porch, and quite difficult to read from the sidewalk.
Cartier Street, twinned with Macdonald Street to the east, commemorates Sir George-Etienne Cartier (1814-1873). A Father of Confederation, and a Co-Premier of Ontario and Quebec with John A. Macdonald, Cartier was largely responsible for bringing his province into Confederation.

James Street and Bay Street
On the other side of Centretown, Bay and James (no 'St') are marked in rusting tablets attached to these red cement bricks.

Booth Street on Chaudiere IslandOne of the buildings on the Ottawa side of the J.R. Booth; E.B. Eddy; Domtar mill complex has a municipal street sign that has been painted over.
535 probably refers to a Building Number, not the municipal address.
John Rudolphus Booth (1827-1925) built Canada's biggest saw mill at the Chaudiere Falls and by 1892 he was the largest lumber producer in the world - Booth Street traverses this now crumbling industrial empire.
There is a blank sign on the other side of Building 535, but this street and its name have long disappeared.

Maclaren Street and Lyon Street
The flat-roofed house at Maclaren and Lyon Streets was built in the early 1890s as a grocery store, with the owner's quarters on the second floor. It faces onto Dundonald Park.
The entrance to the store was bricked up many years ago. The owner's residential entrance was on the right. Just above the brick corbeling is a brick that is unstained by soot. It had been covered over with metal siding for decades.
It has a mate on the Lyon Street side - telltale evidence that there were street name plaques here. And of course Lyon needed a much shorter sign than Maclaren.

O'Connor Street and Lisgar Street
This double house with one door on O'Connor and the other on Lisgar has well preserved street signs.
The individual letters, either galvanized or tin-plated, are tacked onto blank slugs. The City of Ottawa uses the same system today - but it's sticky letter decals with a reflective coating that are stuck onto the blanks.

They even had an apostrophe to hand. Who paid for these signs - the city or the property-owners? And how long were they in use?