1.  stevenson(n = noun.person) robert louis balfour stevenson, robert louis stevenson - Scottish author (1850-1894);
is a kind of author, writer

2.  stevenson(n = noun.person) adlai ewing stevenson, adlai stevenson - United States politician and diplomat (1900-1968);
is a kind of diplomat, diplomatist

adlai ewing stevenson, adlai stevenson, elizabeth cleghorn stevenson gaskell, robert louis balfour stevenson, robert louis stevenson