CREATE TABLE table_54819 ("Marginal Ordinary Income Tax Rate" TEXT, "Single" TEXT, "Married Filing Jointly or Qualified Widow ( er ) " TEXT, "Married Filing Separately" TEXT, "Head of Household" TEXT)

Name the marginal ordinary income tax rate that has a head of household of $372,951+
SELECT "Marginal Ordinary Income Tax Rate" FROM table_54819 WHERE "Head of Household" = '$372,951+'
SELECT "Marginal Ordinary Income Tax Rate" FROM "table_54819" WHERE "Head of Household" = '$372,951+'