CREATE TABLE table_18546 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

How many people on this list are named thomas abernethy?
SELECT COUNT("Candidates") FROM table_18546 WHERE "Incumbent" = 'Thomas Abernethy'
SELECT COUNT("Candidates") FROM "table_18546" WHERE "Incumbent" = 'Thomas Abernethy'