Paul E. and Rena Dondi Rohrkemper. They were married on December 4, 1943 in Long Beach, CA, where both were stationed: he as an enlisted man in the Marines and she as a Navy nurse. Soon after the wedding Paul was dispatched to the war in the South Pacific and Rena, pregnant with their first child, had to resign her commission and move back in with her mother in Pittsfield, MA where a son was born. Paul didn't see his first-born till he was discharged at war's end, when his son was a year old. (Thank you to John Rohrkemper for the photo and information.)
Primary sources are the raw materials of history - original documents and objects which were created at the time under study- or original research (experiments, scientific studies, surveys). They are different from secondary sources, accounts, interpretations, or criticism of primary sources or historical events.
-- Adapted from the Library of Congress
Primary Source Examples in the Humanities
Primary Source Examples in the Sciences
Secondary sources, like biographies, histories, and criticism, analyze, review, and interpret primary sources.