Hi Charleen, I looked through all the Census records for Blanche's family members and didn't find Blanche living with any of the children. If you'd like what I found, let me know.
You need to go back to Labette Co., Kansas and look for her marriage there. I'm not familiar with Kansas so can't tell you where. I have good luck when I do a Google search for the county name, state name and genealogy. That usually brings up lots of web sites to investigate.
You can also post your search on the Labette Co. Message Board and ask where to look for marriages. Successful Searching!