Existing Zoning Map. The Zoning Map of the Incorporated Village of Northport, in effect on the date of adoption of this provision, is hereby made a part of the Zoning Chapter of the Code of the Village of Northport. Said map has been amended simultaneously herewith to reflect the elimination of the Residence E District and changing the zoning of properties previously zoned as Residence E District to Residence C District or Residence D District as shown on the Zoning Map. For the purpose of identification, those lots previously zoned Residence E on Stanton Street encompassing Section 6, Block 2, Lots 73 through 80, will now be zoned Residence D and those lots previously zoned Residence E on Scudder Avenue encompassing Section 9, Block 2, Lots 54 through 63, will now be zoned Residence D. In all other respects, said Zoning Map remains unchanged. All prior ordinances, local laws and amendments thereto describing the limits of zoning districts shall, unless changed as described above or unless further amended, control the location of zoning district boundaries under this chapter.