CREATE TABLE table_18737 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Which district was the race between john i. nolan (r) 87% thomas f. feeley (s) 13%?
SELECT "District" FROM table_18737 WHERE "Candidates" = 'John I. Nolan (R) 87% Thomas F. Feeley (S) 13%'
SELECT "District" FROM "table_18737" WHERE "Candidates" = 'John I. Nolan (R) 87% Thomas F. Feeley (S) 13%'