Removed tiger:tlid 145486380 which there is no evidence of on the ground, on aerial photos or street views.

Thanks, will do!

Yes, the post office definitely delivers to both 18 and 20 at this address. I'm not sure that the private driveway should be listed as Lonsdale Avenue - the actual route of the historical Lonsdale Avenue is behind the house, and can be seen on city assessor's maps.