It looks like Alice and Jacob were married in Twin Falls County, Idaho. The 1910 Census shows they had been married two years. Twin Falls County was created in 1907.
I didn't find their marriage in FamilySearch or Brigham Young University-Idaho. However you can contact the Twin Falls County Clerk, 208-736-4004 and ask about a 1908 marriage certificate.
If they don't have it, contact the Cassia County Idaho Clerk and ask them.
By 1920 Alice had divorced and moved to Chicago with her two girls, Elaine and Leslie. Leslie was born in Illinois.
They were living there in 1930 too. Successful Searching!