Complex sentence: His dedication to the poor made a great impression on his cousin's husband, a Mr. Pugsley, from Barnstaple, Devon, so much so that Pugsley, another lawyer, also became a Christian and began working with the poor in Barnstaple.
Split into simpler sentences: His dedication to the poor made a great impression on his cousin's husband, a Mr. Pugsley, from Barnstaple, Devon. So much so that Puglsey, another lawyer, also became a Christian and began working with the poor in Barnstaple.