Complex sentence: John Joseph Connolly Jr. was the namesake and son of an Irish immigrant, John Connolly Sr. His father was a Gillette employee for 50 years; his mother Bridget T. Connolly (née Kelly) was a housewife.
Split into simpler sentences: John Joseph Connolly Jr. was the namesake and son of an Irish immigrant, John Connolly Sr., a Gillette employee for 50 years. Connolly's mother, Bridget T. Connolly (née Kelly), was a housewife.