CREATE TABLE table_204_87 (id DECIMAL, "courthouse" TEXT, "city" TEXT, "street address" TEXT, "jurisdiction" TEXT, "dates of use" TEXT, "named for" TEXT)

how many courthouses were named for someone ?
SELECT COUNT("courthouse") FROM table_204_87 WHERE NOT "named for" IS NULL
SELECT COUNT("courthouse") FROM "table_204_87" WHERE NOT "named for" IS NULL