His parents, who married in January 1772, had already given birth to two sons (Reverend Edward and Colonel Thomas William Ravenshaw) when John was born, and gave birth to two more sons after the birth of John (Captains George and William Ravenshaw).
John's family background revealed that his parents, married in January 1772, had already had two sons (Reverend Edward and Colonel Thomas William Ravenshaw) when he was born, and subsequently welcomed two more sons (Captains George and William Ravenshaw).