Complex sentence: Hibernian Marine School amalgamated with Mountjoy School in 1968 and became Mountjoy & Marine School the school later amalgamated with B & R and took the name of Mount Temple Comprehensive School in 1972.
Split into simpler sentences: Hibernian Marine School amalgamated with Mountjoy School in 1968 and became Mountjoy & Marine School. It school later amalgamated with Bertrand & Rutland and took the name of Mount Temple Comprehensive School in 1972.