Soames, Mary.

British Prime Minister Winston Churchill and his daughter, Mary, walk in the garden of their residence during the Potsdam Conference in Germany past a Guard of Honor formed by a detachment of Scots Guards. From Potsdam album, 1945.

President Harry S. Truman says good bye to Mary Churchill, daughter of the British Prime Minister Winston Churchill, on the steps of the "Little White House," President Truman's residence during the Potsdam Conference in Germany. Prime Minister Winston Churchill is descending the steps. He has just paid a visit to President Truman. Admiral William Leahy is at the left, behind President Truman. General Dwight D. Eisenhower (hat removed), and General Harry Vaughan (right, back to camera) are also present. Others are unidentified. From Potsdam album, 1945.

Prime Minister Winston Churchill (right) is accompanied by his daughter Mary, with Naval Aide and Foreign Minister Anthony Eden in the background, as they walk back to the Prime Minister's residence from the "Little White House" (residence of President Truman). They are attending the Potsdam Conference. From the album, "The President's Trip to Potsdam, album number 1."

Fleet Admiral William Leahy (foreground, left) greets Prime Minister Winston Churchill (foreground, right) at the entrance to the "Little White House," President Truman's residence during the Potsdam Conference, as the Prime Minister calls on the President for the first time. In the background are (left to right) General Harry Vaughan, Mary Churchill, the daughter of Winston Churchill, and Prime Minister Churchill's bodyguard. From the album, "The President's Trip to Potsdam, album number 1."

Winston Churchill (second from left) arrives in Washington with his wife (right) and daughter Mary (second from right) after a train ride from Miami. His son, Randolph Churchill (left), greets them at the station. Others in the background are unidentified.

President Harry S. Truman (left) and British Prime Minister Winston Churchill (right) at the bottom of the stairs of the "Little White House," the residence of President Truman during the Potsdam Conference in Germany. Standing at the top of the stairs are Admiral William Leahy (far left) and Mary Churchill, daughter of Winston Churchill (second from right). At the right is General Harry Vaughan. Others are unidentified. From Potsdam album, 1945.