Caroline Onion born.Box Wilts. England 1837. Her maiden name was Osborne. William Thomas Onion - his father was Henry Onion his mother Sarah Onion maiden name Thomas. This could probably explain the Monmouth connection but I cannot verify that as I have no knowledge of Sarah's family. The Bethnal Green connection - Alfred Thomas Onion and his brother went to Bethnal Green c. 1900. Alfred Thomas was my husband's grandfather.