Complex sentence: The McGregor lineage continued with son Ken McGregor representing West Adelaide and South Australia with distinction in the 1950s, besides playing tennis at the highest level including representing Australia in three Davis Cup winning sides (1950,51 and 52).
Split into simpler sentences: The McGregor lineage continued with son Ken McGregor representing West Adelaide and South Australia with distinction in the 1950s. Ken also played tennis at the highest level including representing Australia in three Davis Cup winning sides (1950,1951 and 1952).