Section 75 ILCS 16/15-55 - Petition of residents or library district board; notice(a) Upon the filing of a petition with the circuit court of the county that contains all of the territory of the district or the larger part of the district, signed by not fewer than 100 voters residing within any territory proposed to be annexed, or upon the filing of a petition by a board of trustees of a library district seeking to annex that territory, the circuit court shall enter an order setting forth the date a hearing will be held on the petition and naming the judge who will preside at the hearing.(b) The petitioner shall publish notice of the time, date, and place of the hearing and the name of the judge who will preside at the hearing. The notice shall be published as provided in Section 1-30 and shall be published in the district and in the county that contains all or the larger portion of the proposed district. The petitioner also shall send, concurrently with the publication of the notice of the hearing, a notice of the hearing and a map showing the boundaries of the territory to be annexed to the President of the Board of Trustees of each public library with territory within one mile of the territory to be annexed.