<a href="https://en.wikipedia.org/wiki/Captain_(United_States_O-3)" id="mw7g" rel="mw:WikiLink" title="Captain (United States O-3)">Captain</a> <a href="https://en.wikipedia.org/wiki/Lowell_Smith" id="mw7w" rel="mw:WikiLink" title="Lowell Smith">Lowell Smith</a> and <a href="https://en.wikipedia.org/wiki/Lieutenant" id="mw8A" rel="mw:WikiLink" title="Lieutenant">Lieutenant</a> John P. Richter perform the first <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mid-air_refueling" id="mw8Q" rel="mw:WikiLink" title="Mid-air refueling">mid-air refueling</a> on <a class="mw-redirect" href="https://en.wikipedia.org/wiki/De_Havilland_DH-4B" id="mw8g" rel="mw:WikiLink" title="De Havilland DH-4B">De Havilland DH-4B</a>, setting an endurance flight record of 37 hours.