California Code, Government Code - GOV § 27236

The recorder shall keep two indices of releases of mortgages, labeled respectively: “Releases of mortgages of real property--mortgagors” and “Releases of mortgages of personal property--mortgagors,” with pages thereof divided into four columns, headed respectively: “Parties releasing,” “To whom releases are given,” “Where releases are recorded,” and “Where mortgages released are recorded.”