. . . . . "Aviation"@en . "Lieutenant"@en . . "Robert Lyle McKendrick Barbour"@en . "Lieutenant Robert Lyle McKendrick Barbour was a Scottish World War I flying ace credited with six aerial victories."@en . . . "Robert Barbour (RAF officer)"@en . . . "Lieutenant Robert Lyle McKendrick Barbour was a Scottish World War I flying ace credited with six aerial victories."@en . .