Hello! Could you help me out by telling what kind of school you have in mind. The sisters Martha Smith (whose given names I have found many variations of) and Hazel Smith (maybe also known as Marena) were born in the Eugene, Oregon area in the 1870s and moved to Spokane, Washington State as small children, before 1880 . I presume they received their primary schooling in eastern Washington State. I know that Martha was married for the first time at age 18 but I don't have marriage info for Hazel.
Let me know what prompted you to ask the question and I can do some further digging. Since I live in Washington State, I may be able to come up with a source. These sisters, especially Martha, have proven elusive. You can see by the profile that I was scratching my head over exactly how many times (3 or 4?) she was married and whether she went by Martha, Irene, Marena, Rena, or Bertha. Hazel may have gone by Marena.