Complex sentence: Rigby's first newspaper work was as an illustrator with Western Australian Newspapers in 1948, however, his work as a political cartoonist started at the "Perth Daily News" in 1952, where he won five Walkley Awards between 1960 and 1969.
Split into simpler sentences: Rigby's first newspaper work was as an illustrator with Western Australian Newspapers in 1948. However, his work as a political cartoonist started at the "Perth Daily News" in 1952, where he won five Walkley Awards between 1960 and 1969.