Bill, thank you for the reply, but these are things we've always known and that really don't pertain to our current concern anyway.(And by the way:Thomas Evoy and his wife Katherine were not related to Martin and his wife Katherine at all.)
As mentioned in my original posting, what we want to finally find out is what became of Katherine Niles, where she went off to, after she up and left Henry and the three girls in 1915 or 1916.The frustrating thing is that the daughters Viola, Helen, and Marguerite KNEW where she went, what became of her.They KNEW!But when any of us would ask any one of the three where their mother went -- (and over the years, we posed that question to each of them more than once) -- they would answer in no uncertain terms that they did not want to discuss it and they would clam right up.The effect of that was simply to peak our curiosity all the more as to where Katherine did go off to.
So actually, we're not interested in genealogy at all in this particular instance, but rather, simply in what became of Katherine after she up and left her family in 1915 or 1916 at age 30.
The Henry Niles family is enumerated in the 1910 census, by the way, but is erroneously indexed as "Miles" rather than Niles.The person who compiled the index apparently mistook the handwritten "N" for an "M".