Wanderings of Joe & Little Em by Albert Bigelow Paine

This book is #5 in the Boys and Girls Booklovers Series. See http://henryaltemus.com/series/series56.htm.
Initially it was published as a non series book in 1903 and in 1905 became part of the aforementioned series.

This book has an inscription by the author to the dedicatee of the book. But even better is that the dedicatee is also the title character of the book.