This poem is from Verse and Worse a collection by Arnold Silcock. It is given as by Anon and I wondered if the poet had subsequently been found.
True is the saying, that in common lives
There dies a poet and the man survives.
In some he dies hard, and, before he dies,
Keeps in the half-extinguished spirit-eyes
Just sight enough to know he cannot see;
And so the poet that still breathes in me
And strives his fitful essence to prolong,
Once, to the joy departing, made this song.