Simplify the following text for a Grade 8 native English-speaking person.
Original: In 1975 she married Derek Bryceson ( a member of Tanzania 's parliament and the director of that country 's national parks ) ; he died of cancer in October 1980 .
Simplified: In 1975 she married Derek Bryceson . He was a member of Tanzania 's parliament and director of national parks ; he died of cancer in October 1980 .