Complex sentence: In 1851 he married Elizabeth Frances Isaac, a woman who, unusually for the times, became known for her studies in meteorology and conchology, later becoming the first woman member of the Royal Society of Queensland.
Split into simpler sentences: In 1851 he married Elizabeth Frances Isaac, a woman who, unusually for the times, became known for her studies in meteorology and conchology. His wife Elizabeth became the first woman member of the Royal Society of Queensland.