Was Spirit Vale a Real Place in Early 1900s New York?

No. There is no historical record of a city, town, or village named "Spirit Vale" in New York State during the early 1900s (or any other period).

It does not appear in:

• US Census records
• Postal service directories
• Topographic maps (USGS)
• New York State gazetteers
• Local histories or newspaper archives

It is almost certainly a fictional location—possibly from a novel, ghost story, game, or local legend. Similar-sounding real places include Spirit Lake (in several states) or Vale (common place-name element), but not "Spirit Vale" in New York.