Can you please refer me to a site as to where I might be able to find
information on the early life of the prophet, Isaiah?

Very little is known about the prophet Isaiah.

"Among the men whose prophetical writings have been preserved in the
canon of the Bible, Isaiah, the son of Amoz, stands first. Of the
circumstances of his life little is known. He seems to have descended
from a noble family, according to Jewish tradition a side-line of the
reigning family of David. Isaiah was married and lived in Jerusalem,
his two sons, by God?s command, bearing names with symbolical
meanings. He began his activity as prophet in the year in which King
Uzziah died, 758 B. C., and appears to have been active for some sixty
years. Beside his book of prophecy Isaiah also wrote a historical
work, 2 Chron. 26, 22. According to an ancient tradition, which,
however, cannot be verified, Isaiah suffered martyrdom under King
Manasseh."

http://www.kretzmannproject.org/ISA/ISA_INTRO.htm

A very good 415 page pocket size booklet, titled " ISAIAH'S
PROPHECY..Light for all Mankind" [ parts One and Two]is available from
any branch office of the Watchtower Society [ Jehovah's Witnesses].
Just ask any member, or approach any Kingdom Hall, or on the I/Net at
www.watchtower.org. A sample; Chapter One

A Prophet of God Brings Light for Mankind

WE LIVE in an age when virtually anything seems within man?s reach.
Space travel, computer technology, genetic engineering, and other
scientific innovations have opened up new possibilities to the human
race, bringing the hope of a better life?perhaps even a longer one.

2 Have such advances enabled you to remove the locks from your doors?
Have they eliminated the threat of war? Have they cured disease or
removed the sorrow of losing a loved one in death? Hardly! Human
progress, remarkable as it may be, is limited. ?We have figured out
how to travel to the moon, make ever more powerful silicon chips, and
transplant human genes,? states a report by Worldwatch Institute. ?But
we have not yet been able to provide clean water to a billion people,
slow the loss of thousands of species, or meet our energy needs
without destabilizing the atmosphere.? Understandably, many look to
the future with anxiety, uncertain about where to turn for comfort and
hope.

3 The situation we face today is similar to that of God?s people
during the eighth century B.C.E. At that time, God commissioned his
servant Isaiah to bring a message of comfort to the inhabitants of
Judah, and comfort was just what they needed. Turbulent events rocked
the nation. The cruel Assyrian Empire would soon menace the land,
filling many with dread. Where could God?s people turn for salvation?
The name of Jehovah was on their lips, but they preferred to put their
trust in men.?2 Kings 16:7; 18:21.

you can find something more on this: injil.org/TWOR/55.html

www.normluth.org/newnorm/Community/ Adults/Orchard/2005/oct2pres.pdf
www.saintmatthew.org/media/c2c/prophets.pdf
www.wartburg.edu/campusministry/Vernsermon.pdf
www.pupress.princeton.edu/chapters/s6799.pdf