Estate of Dittmer

F. R. Dittmer died testate on the 7th day of December, 1915. By the third clause of his will, which was duly admitted to probate, the deceased gave the income of his estate to his wife during her life as long as she remained his widow. The provision was as follows:

“Third. As long as my wife remains my widow she shall have the entire income of my estate for her use and benefit *306and for the support, maintenance, and education of my children until they arrive at such age as to be able to maintain themselves, at any event not any longer than until they are twenty-one years old. However, it is my…