Three of the many young oyster shuckers leaving the Pass Christian Cannery at five o’clock in the evening. The 7-year-old Lena Krueger (center) had shucked 6 pots that day; the 9-year-old Annie Kadeska (right) had shucked 10 pots; and the unidentified-age Rosie Zinsoska (left) had shucked 6 pots. Location: Mississippi’s Pass Christian…