Complex sentence: On her 20th birthday she became the second wife of Melbourne retail businessman Sidney Myer, who was originally named Simcha Baevski who arrived in Australia as a penniless Russian immigrant in 1899.
Split into simpler sentences: On her 20th birthday she became the second wife of Melbourne retail businessman Sidney Myer. Originally named Simcha Baevski, Sidney Myer arrived in Australia as a penniless Russian immigrant in 1899.