THOMAS
EDISION was the inventor of the electric light and motion picture camera.
With the idea of communicating with the dead through the use of a machine, Edison
and his assistant worked hard to build just that machine. Edison was so convinced
he wrote "if our personality survives, then it is strictly logical or scientific
to assume that is retains memory, intellect, other faculties and knowledge that
we acquire on earth. Therefore, if we can evolve an instrument so delicate as
to be affected by our personality as it survives in the next life, such an instrument,
when made available, ought to record something". It is so unfortunate that
Edison passed away before he had chance to prove his idea, but how right he
was."
MARCELLO
BACCI of Grosseto, Italy. In 1949 Bacci became interested in the paranormal
and soon began experimenting with differet methods or recording voices and more
than 35 years on he is still carrying on with his work. For about 20 years now,
he has been recieving voices from his spirit communicators, through an old valve
radio. Over the years and still today he has helped many bereaved families, mainly
parents who have lost children.
In 1971 FRIEDRICH JUERGENSON
a Swedish film producer came upon EVP accidently one day. While recording birdsong
in the countryside, the tape picked up a faint voice but no one else had been
around at the time. This discovery inspired him to experiment further and one
day he heard his mothers voice. This encouraged him on to tape hundreds of EVP
voices. After writing his first book "Voices From The Universe" he was
approached by a gentleman named Dr Konstantin Raudive. He visited Juergenson to
learn his techniques and then continued experimenting in his own right.
GEORGE MEEK in 1971with two colleagues Paul Jones and Hans Heckman, opened a laboratory
in America. They began the first serious EVP research. You can read about their
many EVP captures in the book by Meek "After We Die What Then". Their
work inspired many others to begin work with EVP.
SARAH
ESTEP in 1982 formed the (AA-EVP) American Association of Electronic Voice Phenomenon.
This now has many members from all over the world who can share and work together.
Sarah's books "Voices of Eternity" and "Roads of Eternity"
will inspire all those who read them 
DR
KONSTANTINE RAUDIVE a psychologist worked for a short time with Friedrich Juergenson,
but then went back to continue to work on his own. He developed his own techniques
using radio static. Altogether he recieved thousands of voices, many under laboratory
conditions. In 1969 he published a book "The Inaudible Becomes Audible,"
later being called "Breakthrough".