[QUOTE=Mark Ryle]
There were not, in 1895, both odd and even addresses on the west side of Broadway. Today there are, so my question becomes: Why and when did the numbering system change (if it did) and what is the present system?
[/QUOTE]
Ah, but there were. Maybe Moses King didn’t think they were worthy of inclusion, but they were there.
To answer your question, I perused the New York Public Library’s wonderful online collection of real estate maps. This one, from 1885 shows a smattering of even-numbered addresses on the west side of Broadway, but only across from the park. (The blocks in question are in the bottom right-hand corner of the map; the park itself is on the subsequent map.)
To save you the trouble of NYPL’s horrible pan and zoom feature, here are the addresses in question:
251 Herring & Co Safes
254 Unlabeled
257 Unlabeled
259 Devlin & Co
261/264 Unlabeled (1 building, 2 addresses)
265 Marvin Safe Co
270 Chemical Bank
271 Shoe & Leather Bank (the one in King’s Book)
So, as you can see, 270 was there, along with a few others.
The first one I checked was 1911 , which of course also had even numbers, but not entirely the same ones:
253 Postal Tel Building
256 Home Life Ins. Co
258/259 Rogers,Peet & Co (1 building, 2 addresses)
261 Smith, Gray Building
267 Unlabeled
271 Shoe & Leather Bank
Whew, between this New York question and my own , I haven’t done this much historical research since college. 