Complex sentence: There is a concentration of Sumby in and around Sunderland in the UK, the earliest recorded Sumby being a resident of the Parish of Bishopwearmouth in the mid 19th century.
Split into simpler sentences: There is a concentration of Sumby in and around Sunderland in the UK. The earlist recorded Sumby being a resident of the Parish of Bishopwearmouth in the mid 19th century.