Photographs of ancestors in the merchant navy are common because in the past this industry was a very large one, employing hundreds of thousands of people. Photos were also a means for family at home to have a reminder of their relative at sea who might be away for months or even years. Quite often, photos were taken to mark a specific event such as a person’s first appointment as an apprentice, their qualifying as a ship’s master (’captain’), or the receipt of an award for bravery. Photos may also denote occasions such as a ship’s maiden voyage, a wedding or someone’s retirement from the sea. The details in a person’s dress may give clues to your ancestor’s role and employment among much else.