Maytag founder Frederick Maytag's 1925 Iowa State census entry makes two excellent points--the importance of looking for neighbors and the fact that some individuals can be listed by their initials.
My initial searches for Frederick Maytag brought no results with the correct age, but viewing the entry for Frederick Maytag (shown as a son in the neighboring household), I quickly saw the grandparents living next door.
Always consider someone being enumerated under their initials and always pay attention to the neighbors.
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