Published in the 1889-dated People's Edition under the heading
PREFACE.
(ADDRESSED TO ANY MOTHER.)
Apparently there is another version, identical in wording and typesetting (probably as two sides of one leaf) except in its closing,
Easter-tide, 1890.
in place of "Eastertide, 1889." Presumably that version appears in 1890-dated edition(s), and probably also in later editions/printings. So implies the 2010 Publisher's Note in conjunction with its "Preface to the 1890 Edition" (see).