Well, I wish I could have helped more. Will continue to look. In the meantime, I found two more children born to the couple:

Jessie Blair b. 31 Dec 1883, Chippewa Falls, Chippewa,Wisconsin
Lidia Blair, 31 Dec 1883, Chippewa Falls, Chippewa, Wisconsin

Apparently these are twins.

Back later if I find anything out.