John Rajca is one of the science editors for the Jonathan Park
adventures. He also served as the museum curator for the Institute
for Creation Research for 19 years. He has spoken to several
thousand people a year (of all ages) through guided tours of the
museum. He has hosted many interesting guests including the
American Atheists Association, the American Humanists Society,
university students and professors from various Southern
California schools, and people who claimed they were from other
planets.
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Pat Roy is a motivational speaker with a unique message about
creation and the Christian life.  A committed creationist, Pat worked
for the Institute for Creation research for over 11 years. In that
time, he and his team took some of the most complex scientific
proofs for creation and translated them into everyday language
and concepts. Over the last few years, he and his wife, Sandy have
been involved in the Jonathan Park audio adventures, reaching an
audience of millions.
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Duane Riffenburgh is one the actors featured on the Jonathan
Park adventures. While he's done several roles with varied
accents, he's best known as Dr. Daniel Priest on Album #5 -
The
Explorer's Society
. He has been a dedicated home schooling father
for the past 18 years and an ardent creationist for 15. He has
preached in the Baptist mission on Skid Row in Los Angeles and
lectured to churches and Bible study groups in Southern California.
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