Complex sentence: He would hold this position until May 1982, making him Hong Kong's longest serving governor; his 10 years and 6 months in office slighty exceeding Sir Alexander Grantham's previous record by one month.
Split into simpler sentences: He would hold this position until May of 1982, making him Hong Kong's longest serving governor. His 10 years and 6 months in office slighty exceeding Sir Alexander Grantham's previous record by one month.